1976: Peter Frampton went to #1 on the Billboard album chart with "Frampton Comes Alive". The LP would stay on the chart for 97 weeks and sell over 6 million copies. It is still one of the largest selling 'live' albums of all time, behind Garth Brooks' "Double Live", "Bruce Springsteen and the E Street Band Live 1975 - '85" and "The Eagles Live".
1977: ABBA earned their only number 1 hit in the United States when "Dancing Queen" went to the top. The song also led the charts in 13 other countries.
1973: Gilbert O'Sullivan scored his second UK #1 with "Get Down". It reached #7 in the US.
1979: "Music Box Dancer" by Canadian pianist Frank Mills became the number-one single in the US, the first instrumental in several years to reach the top of the charts. In Mills' home country, the record only made it to #47.