Sheila Diana Ferguson, born 8 October 1947 in Philadelphia, Pennsylvania, is an American singer who rose to prominence as a lead vocalist for the Three Degrees. After early solo recordings in 1965, Ferguson joined the trio in 1966, contributing to their breakthrough with "When Will I See You Again" (1974), which topped the UK Singles Chart for two weeks and reached number 2 in the United States, selling over two million copies and earning a gold record. The group released several albums on Philadelphia International Records, including The Three Degrees (1973) and Take Good Care of Yourself (1975), and toured internationally. Ferguson departed the group in 1986 to focus on family, subsequently launching a solo career that produced the album A New Kind of Medicine (2004) and a 1994 single remake of "When Will I See You Again" that entered the UK chart at number 60. Her stage work extended into musical theatre, with roles in Soul Train (The Musical) and The Hot 100 tour, and she appeared in pantomimes such as Cinderella and Beauty and the Beast. Ferguson received the Variety Legends of Industry Award in 2013 and has been active in philanthropic efforts, including support for The Music Hall Guild and WaterAid.
