1971: Isaac Hayes' "Theme From Shaft" is released. When Hayes sings "That John Shaft is a bad mother..." the voice you hear telling Hayes to "shut your mouth" is that of Thelma Hopkins of Tony Orlando And Dawn.
1972: David Cassidy reached the top of the UK singles chart with a cover version of The Rascals' 1967 hit, "How Can I Be Sure". It would be the first of two UK #1's for Cassidy, but in America it stalled at #25.
1973: Grand Funk scored their first number one record when "We're An American Band" hit the top of Billboard's Hot 100. The song was sung by drummer Don Brewer rather than Mark Farner, who usually took lead vocals.
1968: The Beatles had not only their biggest hit, but also the largest selling record of the 1960s when "Hey Jude" reached the top of the US charts. The song, written by Paul McCartney for John's son Julian, would stay at number one in America for nine weeks and sell over eight million copies. In 1996, Julian paid 25,000 pounds for the recording notes to the song at an auction.
1975: John Denver's two sided hit, "I'm Sorry" / "Calypso" reached the top of the Billboard singles chart. It was his fourth and final US number one record, although he would place six more songs in the Top 40.