Are Mazzy Star and Team Sleep both American bands?
Mazzy Star Mazzy Star is an American alternative rock band formed in Santa Monica, California, in 1989 from the group Opal, a collaboration of guitarist David Roback and bassist Kendra Smith. Roback's friend Hope Sandoval became the group's vocalist when Smith left the band.
Mammatus (band) Mammatus are a psychedelic rock band from Santa Cruz, California.