Britney Spears and Iggy Azalea drop their new track, "Pretty Girls." Produced by The Invisible Men, the track has an '80s dance party feel to it. Spears and Iggy exude confidence on the new pretty gang theme song. The track was supposed to be released today (May 4), but hit the web two days early. Azalea, who's been on a social media hiatus, broke her silence to address the leak via Twitter:

I happened to have noticed that pretty girls, my song with @britneyspears has leaked and is on some radio stations etc... I'm really really happy to see so many people loving it but i also just want to clarify its not an "early" release its a leak and if you can we would really appreciate everyone holding out until monday to share links etc if possible (i know its hard, I'm excited too!) Also for the record brit and i are both singing the chorus's together... i guess you guys aren't used to hearing my singing voice :-) saw some people missed that aspect, maybe when we perform it it will be more obvious hahaha.

Spears wanted to switch up her promo before the song dropped. She created a limited amount of Britney-branded SUVs that drove around L.A. playing the song for a few Uber riders. The video, which is inspired by sci-fi comedy Earth Girls Are Easy, will drop on May 11 and it's directed by the former XXL Freshman. Brit and Iggy will perform the song for the first time at the 2015 Billboard Music Awards on May 17.

Take a listen to the track above.