Misplaced Pages

"I Know What You Did Last Summer"
Single by Shawn Mendes and Camila Cabello
from the album Handwritten (Revisited)
Released	November 18, 2015 (2015-11-18)
Recorded	2015
Genre	Pop
Length	3:43
Label	Island
Songwriter(s)	Shawn Mendes Camila Cabello Ido Zmishlany Noel Zancanella Bill Withers
Producer(s)	Ido Zmishlany Noel Zancanella
Shawn Mendes singles chronology
"Stitches" (2015) "I Know What You Did Last Summer" (2015) "Treat You Better" (2016)
Camila Cabello singles chronology
"I Know What You Did Last Summer" (2015) "Bad Things" (2016)
Music video
"I Know What You Did Last Summer" on YouTube

"I Know What You Did Last Summer" is a song by Canadian singer Shawn Mendes and American singer and Fifth Harmony member Camila Cabello. The song serves as Cabello's debut single as a solo artist and was released as the lead single from the reissue of Mendes' debut studio album, Handwritten (Revisited) (2015), via Island Records on November 18, 2015. It reached the top 20 on the US Billboard Hot 100 and on the Canadian Hot 100. Mendes and Cabello promoted the song with several televised performances, including on The Tonight Show Starring Jimmy Fallon and at the 2016 People's Choice Awards. Mendes and Cabello later collaborated on "Señorita" in June 2019.

Background and composition

"I Know What You Did Last Summer" was written backstage spontaneously on one of Taylor Swift's The 1989 World Tour stops, in which Mendes was an opening act and Cabello was the surprise guest as part of the group Fifth Harmony. "We were just backstage. There were like 100 people in my dressing room at the time, and it was madness back there, but I had this guitar and I was just jamming out, and we basically wrote a pre-chorus and a chorus in like 30 minutes," Mendes said in a video released about the making of this song. "And we planned to go into the studio, and it was like an 11-hour studio session where we finished writing the song." After a live performance on Live with Kelly and Michael, Cabello said, "We were just kind of jamming out. We weren’t really just writing a song. We kind of started spitting out melodies and put lyrics to it; I don't think we knew we had a song."

The artists co-wrote "I Know What You Did Last Summer" with its producers Ido Zmishlany and Noel Zancanella, with Bill Withers receiving songwriting credits for the sampling of his 1971 single "Ain't No Sunshine" and Ryan Tedder also receiving songwriting credits. Cabello described "I Know What You Did Last Summer" as a "conversation between two people in a relationship where it's dying, but nobody wants to admit that it's dying." The song is sung in A minor, and set in common time with a tempo of 114 bpm.

Commercial performance

"I Know What You Did Last Summer" debuted at number ninety-seven on Billboard Hot 100 for the chart dated December 5, 2015 and jumped to number fifty-five on the following week. On the week ending January 9, 2016, the song jumped from number forty-six to number thirty-three. The song has since peaked at number twenty for the chart dated January 30, 2016, becoming Mendes' second top 20 single, after "Stitches", which peaked at number four on October 31, 2015.

Music video

A music video for the song was released on November 20, 2015, and was directed by Ryan Pallotta. In the video, Mendes and Cabello, ages 17 and 18 respectively at the time of the making of the song and filming of the video, are seen walking through a dark and desolated landscape. They keep trying to walk towards each other but aren't moving. They are seen weathering a sandstorm, followed by a snowstorm and a rainstorm which culminates in a standoff of sorts. The music video has over 412 million views and 4.1 million likes as of January, 2024.

Live performances

Mendes and Cabello's first televised performance of "I Know What You Did Last Summer" was on Live with Kelly and Michael on November 20, 2015. They also performed the song on The Late Late Show with James Corden on November 23, 2015, and at Pitbull's New Year's Revolution on December 31, 2015, in Miami, Florida. Mendes and Cabello performed the track again on The Tonight Show Starring Jimmy Fallon on January 4, 2016.

Preceded by a performance of "Stitches", Mendes and Cabello sang "I Know What You Did Last Summer" at the 2016 People's Choice Awards. They also performed together on The Ellen DeGeneres Show on February 15, 2016. Mendes and Cabello performed the track again at the Radio City Music Hall on March 5, 2016, in New York.

Mendes and Cabello also performed the track while on the 2015 iHeartRadio Jingle Ball tour in December, on the following dates: 1, 4, 11, 16, 18 and 19.

Mendes added the single to his setlist on his tour, Shawn Mendes: The Tour, as a medley with "Señorita"—which Cabello also features in—and "Mutual". The single was also added to his setlist on his first solo concert tour, Shawn Mendes World Tour.

Track listings

• Digital download

1. "I Know What You Did Last Summer"  – 3:43

• Digital download – Radio Edit

1. "I Know What You Did Last Summer" (Radio Edit) – 3:11

Accolades

Charts

Certifications

References

1. ^ Garibaldi, Christina (November 16, 2015). "Exclusive: Get A Sneak Peek At Shawn Mendes And Camila Cabello's New Video". MTV. Archived from the original on November 17, 2015. Retrieved December 4, 2015.
2. ^ Roth, Madeline (November 20, 2015). "Shawn Mendes And Camila Cabello Put Their Stormy Relationship To The Test In 'IKWYDLS' Vid". MTV. Archived from the original on November 21, 2015. Retrieved December 7, 2015.
3. "Shawn Mendes "I Know What You Did Last Summer" Sheet Music - Download". Musicnotes.com. 2 December 2015. Retrieved December 4, 2015.
4. Billboard Staff (November 24, 2015). "Shawn Mendes and Camila Cabello Perform 'I Know What You Did Last Summer' for 'Late Late Show'". Billboard. Retrieved December 4, 2015.
5. Carra, Mallory (January 1, 2016). "Shawn Mendes & Camila Cabello Perform On 'Pitbull's New Year's Revolution' & It's Super Sexy". Bustle. Retrieved January 4, 2016.
6. Cantor, Brian (January 4, 2016). "Shawn Mendes and Camila Cabello perform on "Tonight Show"". Headline Planet. Retrieved January 4, 2016.
7. Katz, Jessie (January 6, 2016). "Shawn Mendes and Camila Cabello Perform 'I Know What You Did Last Summer' at the 2016 People's Choice Awards". Billboard. Prometheus Global Media. Retrieved January 6, 2016.
8. Capital FM Staff (February 17, 2016). "Shawn Mendes & Camila Cabello Perform Together On Ellen And The Chemistry Is So Real!". Capital FM. Retrieved February 18, 2016.
9. "Hear the 3 New Songs Shawn Mendes Debuted in New York City This Weekend". teenvogue.com. March 7, 2016.
10. "I Know What You Did Last Summer - Single by Shawn Mendes, Camila Cabello | Spotify". November 18, 2015 – via Spotify.
11. "I Know What You Did Last Summer (Radio Edit) by Shawn Mendes, Camila Cabello on TIDAL". November 18, 2015 – via Tidal.
12. McIntyre, Hugh. "Drake Wins Big At The 2016 MuchMusic Video Awards". Forbes. Retrieved 2017-03-14.
13. "2016 MMVA Winners". Archived from the original on 2011-05-24. Retrieved 2017-03-14.
14. "Premios Juventud 2016: Lista completa de ganadores". Univision. Retrieved 2017-03-14.
15. "Teen Choice Awards: Winners List". The Hollywood Reporter. July 31, 2016. Retrieved June 13, 2018.
16. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". ARIA Top 50 Singles. Retrieved February 27, 2016.
17. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer" (in Dutch). Ultratop 50. Retrieved April 15, 2016.
18. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer" (in French). Ultratip. Retrieved March 6, 2016.
19. "Shawn Mendes Chart History (Canadian Hot 100)". Billboard. Retrieved January 20, 2016.
20. "Shawn Mendes Chart History (Canada CHR/Top 40)". Billboard. Retrieved May 16, 2018.
21. "Shawn Mendes Chart History (Canada Hot AC)". Billboard. Retrieved May 16, 2018.
22. "ČNS IFPI" (in Czech). Hitparáda – Radio Top 100 Oficiální. IFPI Czech Republic. Note: Select 21. týden 2016 in the date selector.
23. "ČNS IFPI" (in Czech). Hitparáda – Digital Top 100 Oficiální. IFPI Czech Republic. Note: Select 1. týden 2016 in the date selector.
24. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". Tracklisten. Retrieved January 25, 2016.
25. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer" (in French). Les classement single. Retrieved January 25, 2016.
26. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer" (in German). GfK Entertainment charts. Retrieved April 15, 2016.
27. "Greece Digital Songs". Billboard. Retrieved 29 January 2016. (subscription required)
28. "Archívum – Slágerlisták – MAHASZ" (in Hungarian). Rádiós Top 40 játszási lista. Magyar Hanglemezkiadók Szövetsége. Retrieved March 10, 2016.
29. "Archívum – Slágerlisták – MAHASZ" (in Hungarian). Single (track) Top 40 lista. Magyar Hanglemezkiadók Szövetsége. Retrieved March 10, 2016.
30. "Chart Track: Week 12, 2016". Irish Singles Chart. Retrieved March 25, 2016.
31. "Top Digital - Classifica settimanale WK 5 (dal 2016-01-29 al 2016-02-04)". Federazione Industria Musicale Italiana. Retrieved February 6, 2016.
32. "Nederlandse Top 40 – Shawn Mendes" (in Dutch). Dutch Top 40. Retrieved January 16, 2016.
33. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer" (in Dutch). Single Top 100. Retrieved January 30, 2016.
34. "NZ Heatseekers Singles Chart". Recorded Music NZ. February 22, 2016. Retrieved February 19, 2016.
35. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". VG-lista. Retrieved January 23, 2016.
36. "Listy bestsellerów, wyróżnienia :: Związek Producentów Audio-Video". Polish Airplay Top 100. Retrieved June 6, 2016.
37. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". AFP Top 100 Singles. Retrieved 23 October 2017.
38. "ČNS IFPI" (in Slovak). Hitparáda – Radio Top 100 Oficiálna. IFPI Czech Republic. Note: insert 20167 into search.
39. "ČNS IFPI" (in Slovak). Hitparáda – Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note: Select SINGLES DIGITAL - TOP 100 and insert 20161 into search.
40. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". Singles Top 100. Retrieved February 6, 2016.
41. "Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". Swiss Singles Chart. Retrieved February 29, 2016.
42. "Official Singles Chart Top 100". Official Charts Company. Retrieved May 6, 2016.
43. "Shawn Mendes Chart History (Hot 100)". Billboard. Retrieved January 19, 2016.
44. "Shawn Mendes Chart History (Adult Pop Songs)". Billboard. Retrieved March 6, 2016.
45. "Shawn Mendes Chart History (Pop Songs)". Billboard. Retrieved February 2, 2016.
46. "Shawn Mendes Chart History (Digital Song Sales)". Billboard. Retrieved January 23, 2016.
47. "Canadian Hot 100 Year End 2016". Billboard. Retrieved December 9, 2016.
48. "Rádiós Top 100 - hallgatottsági adatok alapján - 2016". Mahasz. Retrieved October 20, 2019.
49. "Top 100-Jaaroverzicht van 2016". Dutch Top 40. Retrieved October 20, 2019.
50. "Jaaroverzichten - Single 2016". Hung Medien. Retrieved December 25, 2016.
51. "Hot 100 Songs - Year-End 2016". Billboard. Retrieved December 8, 2016.
52. "ARIA Charts – Accreditations – 2023 Singles" (PDF). Australian Recording Industry Association. Retrieved December 12, 2023.
53. "Brazilian single certifications – Shawn Mendes – I Know What You Did Last Summer" (in Portuguese). Pro-Música Brasil. Retrieved July 17, 2024.
54. "Canadian single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". Music Canada. Retrieved September 18, 2020.
55. "Danish single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". IFPI Danmark. Retrieved December 19, 2019.
56. "Italian single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last Summer" (in Italian). Federazione Industria Musicale Italiana. Select "2016" in the "Anno" drop-down menu. Type "I Know What You Did Last Summer" in the "Filtra" field. Select "Singoli" under "Sezione".
57. "Certificaciones" (in Spanish). Asociación Mexicana de Productores de Fonogramas y Videogramas. Retrieved June 2, 2017. Type I Know What You Did Last Summer in the box under the TÍTULO column heading.
58. "New Zealand single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". Recorded Music NZ. Retrieved 2024-11-20.
59. "Norwegian single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last" (in Norwegian). IFPI Norway. Retrieved April 6, 2018.
60. "Wyróżnienia – Platynowe płyty CD - Archiwum - Przyznane w 2021 roku" (in Polish). Polish Society of the Phonographic Industry. Retrieved October 6, 2021.
61. "Portuguese single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last Summer" (PDF) (in Portuguese). Associação Fonográfica Portuguesa. Retrieved 23 May 2022.
62. "Veckolista Singlar, vecka 11, 2016 | Sverigetopplistan" (in Swedish). Sverigetopplistan. Scroll to position 62 to view certification.
63. "British single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". British Phonographic Industry. Retrieved 6 January 2024.
64. "American single certifications – Shawn Mendes & Camila Cabello – I Know What You Did Last Summer". Recording Industry Association of America. Retrieved 12 June 2022.

• 2015 singles
• 2015 songs
• Shawn Mendes songs
• Camila Cabello songs
• Songs about infidelity
• Songs written by Noel Zancanella
• Songs written by Camila Cabello
• Songs written by Bill Withers
• Songs written by Shawn Mendes
• Songs written by Ido Zmishlany
• Song recordings produced by Noel Zancanella
• Island Records singles
• Male–female vocal duets