Kathryn "Kathy" Valentine (born January 7, 1959) is an American musician (guitar and bass) and songwriter. She earned a name for herself in her early 20s as a member of The Go-Go's, who made music history by becoming the first all female band to have a number one album in the U.S. Valentine has maintained a career in music through songwriting, recording, performing and touring and has ventured out into other pursuits both academic and creative.