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The wait is over!

After 2 long weeks of Jessie J., Ariana Grande and Nicki Minaj teasing us with 'Bang Bang' snippets (which felt like forever!), we can finally rejoice because the full song is finally here! And it's goooooooood.

[Buy 'Bang Bang' on iTunes]

iHeartRadio is bringing you the premiere all day on Clear Channel radio stations across the country. Check out the song below!

Jessie J stopped by Elvis Duran and the Morning Show in NYC Tuesday morning to celebrate the premiere - and to perform it! Check out the video below.