"Bubble Butt" is a song by American electronic dance music trio Major Lazer featuring American singer-songwriter Bruno Mars and American rappers Tyga and Mystic from the trio's second studio album, Free the Universe (2013). It was written by Major Lazer members Diplo and Switch alongside the featured artists. The production was handled by Major Lazer and Valentino Khan. The remix was released as the album's fourth single on May 24, 2013, for digital download and appears on the album's extended version. The remix version also features verses from American rapper 2 Chainz. Musically, it is an electronic dance, hip hop, and dancehall track with lyrics implying that girls twerk and show off their giant buttocks.

Major Lazer is a Jamaican-American electronic dance music and DJ trio, which includes record producer Diplo, and DJs Walshy Fire and Ape Drums. They originate from Kingston, Jamaica, founded in 2008 by Diplo and Switch, with Switch leaving after three years in 2011. He was then replaced by both Jillionaire and Walshy Fire. In June 2019, Jillionaire left the group and was replaced by Ape Drums. Its music spans numerous genres, mixing reggae with dancehall, reggaeton, soca, house and moombahton.