KT Tunstall
Duffy
Lulu
Cass Elliot
Spanky (McFarland) and Our Gang
Astrud Gilberto (Bossa Nova, not rock or pop, but _Fantastic!)
Some of B-52’s songs (the best ones IMO)
Pat Benatar
Fleetwood Mac (half of the songs are by Stevie Nicks and Christine McVie)
Sarah McLachlan
Joan Jett and the Blackhearts
Patti Smith
Abba (mixture of male and female voices)
The Stone Poneys (with Linda Ronstadt)
Jefferson Airplane
Janis Joplin and The Holding Company
Wilson Phillips
Debbie Gibson
Dusty Springfield
The Carpenters
Whitney Houston
Mariah Carey
Donna Summer
Jewel
Jackie DeShannon
The Supremes
Carly Simon
The Cranberries
Cher
Ten Thousand Maniacs
Sinead O’Connor
Olivia Newton John
Sheryl Crow
Dido
Michelle Branch
Michelle Shocked
Sheena Easton
Kim Carnes
Berlin
The Flying Lizards