who was the lead singer in chicago
I know CHICAGO had 3 lead singers, Cetera, Kath, and Lamm, up to 1985 or so, anyway, but I always thought Lamm did the early Hits, but then I read Kath sanf lead on Colour my world...right? if so, then I really don't know about the other pre-73 tunes...so, who sang lead on: