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Prior to the release of "Incense and Peppermints," the band had already issued four singles ("Long Day's Care" / "Can't Explain", "My Flash on You" / "Fortune Teller", "In the Building" / "Hey Joe", and "Heart Full of Rain" / "First Plane Home") on All-American Records as Thee Sixpence. During the recording sessions for "Incense and Peppermints," the band members were not considered a right fit for the lead vocal track, which John S. Carter had written using a rhyming dictionary, so the lead vocals were sung by Greg Munford, a friend of the band who was present at the recording session. The regular vocalists in the band provided background and harmony vocals on the record. Band members Mark Weitz and Ed King were both denied songwriting credits by producer Frank Slay despite the fact that they contributed to the song. The songwriting credits instead went to Carter and his songwriting partner Tim Gilbert, despite the latter not participating in the song's writing. King would go on to greater fame as a member of the Southern rock band Lynyrd Skynyrd.
"Incense and Peppermints" initially appeared on the B-side of Thee Sixpence's fifth single, "The Birdman of Alkatrash," released on All-American in April 1967. However, local radio stations began playing "Incense and Peppermints" instead of the A-side, and the song began to gain in popularity in and around Los Angeles. Sensing the possibility of a national hit, Uni Records picked up the record for national distribution, and the single was re-released in May with the sides reversed. By the time of this second pressing, the band had changed its name to "The Strawberry Alarm Clock" to avoid confusion with another local band.
"Incense and Peppermints" spent 16 weeks on the Billboard chart, reaching the #1 spot for the week ending November 25, 1967. The single earned a gold disc from the RIAA on December 7 for sales of one million copies.
Breihan, Tom (October 23, 2018). "The Number Ones: The Strawberry Alarm Clock's "Incense And Peppermints"". Stereogum. Retrieved June 14, 2023. ...it's plenty possible to hear "Incense And Peppermints" as a...version of the acid rock that was blossoming in San Francisco during that moment. And maybe "Incense And Peppermints" is that.