Complex sentence: The Dumb Blondes were a English glam rock band, in 1977 the band were current Def Leppard guitarist Phil Collen, singer Jeff Hepting, guitarist Phil Collen, bassist Pete Webb, and drummer Fred Ball.
Split into simpler sentences: The Dumb Blondes were a English glam rock band which originally included current Def Leppard guitarist Phil Collen. In 1977 the band consisted of singer Jeff Hepting, guitarist Phil Collen, bassist Pete Webb, and drummer Fred Ball.