Susan Claire Cowsill is a musician, vocalist and songwriter. She rose to prominence as a member of the family band The Cowsills. After touring with Dwight Twilley for quite some time in the 1980s, she co-formed the band Continental Drifters. Since 1990, she has been with the Cowsills, along with brothers Bob and Paul.

Victoria Anne Theresa Peterson Cowsill is an American rock musician and songwriter. She has been the lead guitarist for the Bangles since their foundation in 1981. After their first disbandment in 1989, she has returned to the band for all subsequent reunions. In intervening years, she has performed with other artists, most extensively with the Continental Drifters.