Yesterday Once More is a song written by Richard Carpenter and John Bettis. It was included on the Carpenters' fifth studio album, Now and Then, as the opening track on the B-Side. "Yesterday Once More" peaked at #2 on the Billboard Hot 100 and is the band's biggest hit worldwide.
Carpenter once admitted in an interview that "Yesterday Once More" was his favorite out of songs he and Bettis wrote.
When "Yesterday Once More" was written in the early 1970s, oldies hits from the fifties and sixties were enjoying a "resurgence in popularity", much to the delight of the brother-sister duo. Carpenter and Bettis thought it proper to write a song about the phenomena, and would use it to bookend Now and Then's oldies medley. 
- Karen Carpenter - lead and backing vocals, drums
- Richard Carpenter - backing vocals, keyboards
- Joe Osborn - bass guitar
- Tony Peluso - guitar