Bump, Bump, Bump is a song by American boy band B2K, featuring P. Diddy. It was released October 2002 as the lead single from B2K’s second album Pandemonium!. It was written by R. Kelly and Varick Smith and produced by R. Kelly. It became B2K’s first top 10 hit on the Billboard Hot 100 singles chart, and reached number one for one week starting on February 1, 2003.