"Bang Bang" is a song recorded by English singer Jessie J, American singer Ariana Grande, and Trinidadian rapper Nicki Minaj. The song was released on July 29, 2014 by Lava and Republic Records as the lead single from Jessie J's third studio album Sweet Talker (2014). It is also included on the deluxe version of Ariana Grande's second studio album My Everything (2014), serving as the third single from that album. In August 2015, "Bang Bang" was certified 5× platinum by the RIAA. As of 2016, the song has sold 3.2 million copies in the US. With a total of 11.02 million copies sold worldwide.

"Bang Bang" debuted at number one in the United Kingdom and reached the top ten in fourteen countries including Canada, Australia, Ireland, New Zealand and the United States. The single was nominated for Best Pop Duo/Group Performance at the 57th Grammy Award (2015), and won Favorite Song of the Year at the 2015 Kids' Choice Awards.

The song was written by Savan Kotecha, Max Martin, and Carolina Liar guitarist Rickard Göransson, while the latter two co-produced it with Ilya Salmanzadeh. Minaj added her rap later. Martin had already previously collaborated with Jessie J ("Domino"), Grande ("Problem", "Break Free"), and Minaj ("Va Va Voom", "Masquerade").

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