Robert Lamm

Robert William Lamm born October 13 1944 is an American keyboardist singer and songwriter who came to fame as a founding member of the band Chicago He wrote many of the bands biggest hits including Does Anybody Really Know What Time It Is Beginnings Saturday in the Park Dialogue and 25 or 6 to 4 He is one of three founding members alongside Lee Loughnane and James Pankow still performing with the group