Peter Cetera net worth: Peter Cetera is an American singer, songwriter, musician, and producer who has a net worth of $15 million dollars. Peter Cetera was born in Chicago, Illinois, and began playing the accordion when he was eleven years old. He then bought himself an acoustic guitar when he was in his early teens. He began playing the electric bass soon after that. In his late teens, he began to perform with various bands in Chicago, and went on to tour and release two albums with the rock group, The Exceptions. In 1967, he saw a band called The Big Thing. The group played rock music, but also used an extensive horn section. He found the combination fascinating, and subsequently left The Exceptions to perform with The Big Thing. The Big Thing later changed their name to The Chicago Transit Authority. This was later shortened to just, Chicago, and the group went on to become one of the most successful bands of all time. He became a highly successful solo artist as well, and has released eight solo albums. He has also had 10 songs reach the Top 20 on the charts.