During his tenure with WAAF, Rivers started producing parody and novelty songs, both for the station and for the KATZ/Newcity "American Comedy Network", a radio syndication service that provided comedy material to local U.S. and Canadian radio stations. One of the first parodies he produced was "Breakin' Up Is Hard On You", about the lawsuit and the resulting Bell System divestiture, the court ordered split up of U.S. telecommunications company AT&T's Bell System. The song was sung to the tune of Neil Sedaka's #1 1962 hit "Breaking Up Is Hard To Do" and peaked at #70 on the "Billboard" Hot 100 pop music chart. He followed it up with "Just a Big Ego," a parody of David Lee Roth's version of "Just a Gigolo". It went on to be included on Volume 2 of "The Rhino Brothers Present the World's Worst Records" and had a music video produced by Steve Rotfeld for "Bob Uecker's Wacky World of Sports".