Sing 20 Number One Hits is the tenth album by British pop group Brotherhood of Man.

It became the group's second biggest selling album, remaining in the top 20 over Christmas 1980.

Commenting on the collection in 1995, Hiller commended their professionalism in the studio, stating; "They were tremendously fast, we could do an album in two weeks.

[6] Of the songs contained, the earliest number one was a cover of "When Will I See You Again" by The Three Degrees from August 1974 and the most recent being "What's Another Year" by Johnny Logan from May 1980.

Other notable covers included "Mull of Kintyre" by Wings, which was the UK's biggest-selling single at that time, and ABBA's "Dancing Queen" - a group that Brotherhood of Man had been compared to many times over their career.