Who are some of the members of the band Rush?
I believe the vocalist was  Geddy Lee, i do not know the rest of the band.
Geddy Lee
Geddy Lee Weinrib, (born Gary Lee Weinrib; July 29, 1953), known professionally as Geddy Lee, is a Canadian musician, singer, and songwriter best known as the lead vocalist, bassist, and keyboardist for the Canadian rock group Rush. Lee joined what would become Rush in September 1968, at the request of his childhood friend Alex Lifeson, replacing original bassist and frontman Jeff Jones. Lee's first and so far only solo effort, "My Favourite Headache", was released in 2000
a 1973 fall tour, Hossack abruptly departed the band, citing burnout from constant touring. Drummer, songwriter and vocalist Keith Knudsen (who previously drummed for Lee Michaels of "Do You Know What I Mean" fame) was recruited promptly in September 1973 and left with the Doobies on a major tour a few weeks later (Hossack subsequently replaced Knudsen in the band Bonaroo, which served as an opening act for the Doobies shortly thereafter). Both Hossack's drums and Knudsen's voice are heard on "Vices".