Peter Cetera with "Restless Heart". Peter Cetera, born on September 13, 1944, in Chicago, Illinois, is a renowned American singer, songwriter, and bassist. He is best known as a founding member of the rock band Chicago and for his successful solo career. One of his notable solo songs is "Restless Heart," released in 1992 as part of his album "World Falling Down." "Restless Heart" was written by Peter Cetera and Andy Hill and became a significant hit for Cetera. The song is a heartfelt ballad tha