The album Chicago Transit Authority featured Peter Cetera.
Peter Paul Cetera ( [ səˈtɛrə ] ; born September 13 , 1944 ) is an American singer , songwriter , and bassist best known for being an original member of the rock band Chicago ( 1967 -- 1985 ) , before launching a successful solo career . His career as a recording artist encompasses seventeen albums with Chicago and eight solo albums . In 2014 , the first album by the group Chicago , Chicago Transit Authority ( Columbia , 1969 ) , with Cetera on bass and vocals , was inducted into the Grammy Hall of Fame .