Kidz Bop is a brand of compilation albums featuring kids performing contemporary popular songs. The series was developed by Razor & Tie co-founders Cliff Chenfeld and Craig Balsam in September 2001. The albums are composed of popular songs that chart high on the Billboard Hot 100 and/or receive heavy airplay from contemporary hit radio stations several months ahead of each album's release. The songs are performed by the KIDZ BOP Kids.