Britney Spears has finally premiered the music video for Iggy Azalea collaboration'Pretty Girls'… and it’s like, totally out of this world.

In the clip, the pop princess can be seen chilling by a pool when alien Iggy arrives - with the Aussie rapper receiving a Britney make-over.

Spears then takes Azalea to meet her airhead friends (who are, like, totally over the top) before heading to the club,where the ‘Womanizer’ hitmaker shows off some of her trademark moves… yep, she’s still got it.

Iggy previously spoke of Britney’s routine in the vid, stating: “I don't know if it necessarily fits my identity, but I think Britney's identity is really embedded in being a dancer, and that's something she really wanted to do as well."

The pair are set to perform the track for the first time at the 'Billboard Music Awards' on Sunday (May 17).

‘Pretty Girls’ is due for release in the UK on June 14.