"Let's Do It Again" is a song by the Staple Singers. Written by Curtis Mayfield, it was part of the soundtrack for the Bill Cosby/Sidney Poitier film Let's Do It Again. The single reached the top of the Billboard Hot 100 singles chart on December 27, 1975, the day before Roebuck "Pops" Staples' 61st birthday, and also spent two non-consecutive weeks at the top of the Hot Soul Singles chart. It was the last major hit by the group. R&B quartet Xscape sampled the song on their first single, the rem