What is the bum bum song?

The "Bum Bum Song" is a comedic song by American comedian Tom Green, released as a single in 1999. The song features Green rapping about his buttocks, also known as the "bum bum," and has a highly repetitive chorus consisting mainly of the words "bum bum." Despite its controversial and raunchy lyrics, the song became a hit in Canada, reaching the top of the charts there, and it also gained popularity in the United States and Europe. However, it was criticized by some for its vulgar content and objectification of women.