Derek Zoolander teams up with Justin Bieber

Ben Stiller as Derek Zoolander and pop star Justin Bieber. Photo / Instagram

Really, really, ridiculously good looking male model Derek Zoolander is on Instagram.

Zoolander, aka Ben Stiller, has teamed up with Zoolander 2 co-star Justin Bieber for a cross-promotional social media campaign.

"When my good friend Justin Bieber asked me to promote his album, Purpose, I said of course. Because I want more Instagram followers. And I hear it's good," Zoolander said in a video posted to Instagram by Bieber.

Zoolander posted a "twinsies" selfie with Bieber doing the iconic Blue Steel pose.

He also posted a selfie with fellow male model Hansel, played by Owen Wilson.

"Hello?? Earth to Instagram..." he captioned the pic.

Proving he's still partial to a liquid pick-me-up, Zoolander shared a pic of an orange mocha pumpkinspice frappuccino at a petrol station.

Hopefully it didn't end with another petrol fight and explosion like in the first film.

Zoolander 2 is due for release on February 11.

- AAP