Peter Cetera played bass.
Peter Paul Cetera -LRB- -LSB- str -RSB- ; born September 13 , 1944 -RRB- is an American singer , songwriter , and bassist best known for being an original member of the rock band Chicago -LRB- 1967 -- 1985 -RRB- , before launching a successful solo career .	Chicago	Chicago (band)	singer	singing	songwriter	songwriter	bassist	bassist
