Roots of Carol Douglas

Susan Soonkyu Lee, known professionally as Sunny (Korean: 써니), is a South Korean and American singer and entertainer based in South Korea. She debuted as a member of girl group Girls' Generation in August 2007, which went on to become one of the best-selling artists in South Korea and one of South Korea's most widely known girl groups worldwide. Apart from her group's activities, Sunny has participated in numerous side projects including original soundtracks, television variety shows, musical acting and radio hosting.

The Three Degrees is an American female vocal group formed circa 1963 in Philadelphia, Pennsylvania. Although several women have been members over the years, the group has always been a trio. The group were particularly successful in the UK, achieving 13 Top 50 hit singles between 1974 and 1985.

"Dancing Queen" is a song by Swedish pop group ABBA, released as the lead single from their fourth studio album, Arrival (1976). It was written by Benny Andersson, Björn Ulvaeus and Stig Anderson. Andersson and Ulvaeus also produced the song. "Dancing Queen" was released as a single in Sweden in August 1976, followed by a UK release and the rest of Europe. It was a worldwide hit, and is widely considered to be the band's signature song. It became ABBA's only number-one hit in the United States and topped the charts of 15 other countries, entering the top five in various others. In 2015, the song was inducted into the Grammy Hall of Fame.