"B-Boys & Flygirls" is a song by Finnish hip hop group Bomfunk MC's that was released as the second single from their debut studio album, In Stereo. It was originally released in 1999, becoming a hit in their native Finland. Following the worldwide success of "Freestyler" the following year, the single was re-released as the "Y2K Mix" and became another hit for the group, charting within the top 20 in several mainland European countries and Australia. It was not released in the United Kingdom, where "Uprocking Beats" was chosen as the follow-up single instead.

The Bomfunk MC's is a Finnish hip hop group that was active between 1998 and 2005, before reuniting in 2018. The group's frontman is the rapper B.O. Dubb, and the main producer is Jaakko Salovaara, known as JS16.