<Ul> <Li> Peter Cetera -- lead vocals , bass </Li> <Li> Terry Kath -- guitar , backing vocals </Li> <Li> Robert Lamm -- piano , backing vocals </Li> <Li> Danny Seraphine -- drums </Li> <Li> Jimmy Pankow -- trombone </Li> <Li> Lee Loughnane -- trumpet </Li> <Li> Walt Parazaider -- tenor saxophone </Li> </Ul>
who played lead guitar on 25 or 6 to 4
Terry Kath