Kathy Foster (bassist for the punk band The Thermals)
Also performs as: Butterfly Transformation Service
Kathleen "Kathy" Foster is an American musician best known as the bassist for the punk band The Thermals and drummer for the All Girl Summer Fun Band.
Foster was raised in Sunnyvale, California and moved to Portland, Oregon in 1998. With Thermals bandmate Hutch Harris, she was in Haelah, Hutch and Kathy, and Urban Legends. She also performs under the name Butterfly Transformation Service. She is the owner of the t-shirt company Daydream Factory.