They're back with a Bang Bang! Jessie J, Nicki Minaj and Ariana Grande return for another raunchy performance of their hit single at the AMAs

When it comes to making a bang Jessie J, Ariana Grande and Nicki Minaj should be given honorary PhD's in the subject.

And on Sunday night the three ladies reunited onstage to perform their hit single Bang Bang at the American Music Awards in Los Angeles, proving once again they are an unstoppable power trio.

Jessie J, 26, opened the live performance by entering through the crowd, where she stopped along the way to bump and grind with some of the celebs in attendance. 

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They're back! Jessie J, Ariana Grande and Nicki Minaj returned with their hit Bang Bang on Sunday night at the American Music Awards in LA

Wearing a metallic and very revealing bodysuit, the singer grinded up next to Khloe Kardashian, and then Taylor Swift, however, Sam Smith looked reluctant to get jiggy with it.