Premise: 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 . With `` If You Leave Me Now , '' a song written and sung by Cetera on the group 's tenth album , Chicago garnered its first Grammy Award . His performance on `` Glory of Love '' was nominated for a Grammy Award for best pop male vocal . That same year Cetera and Amy Grant , who duetted on `` The Next Time I Fall , '' were nominated for a Grammy Award for best vocal performance by a pop duo or group . 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 .
Hypothesis: Peter Cetera was a vocalist.
Label: ENTAILMENT