Justin Bieber has teased his forthcoming cameo in' Zoolander 2' by facing off with the man himself in this new Instagram pic!

The 21-year old took to the image-sharing website this morning (April 29) to share a snap of himself and Ben Stiller - AKA Derek Zoolander - with them both doing their best Blue Steel pose.

Perhaps the most surprising thing about the snap is its caption, with Justin revealing that he’s actually wearing a WIG in the photo.

JB wrote: “@benstiller #Zoolander2 #itsawignotmynewhair.”

Beliebers will be very disappointed by the news, as the ‘Boyfriend’ singer recently had his locks chopped, with many speculating that the pic showed his new look!

He later hinted at his role in the flick on Facebook, teasing: "Working on something big right now in Europe. To learn more follow me on Fahlo. He is so hot right now."

Justin reportedly flew to Rome on Sunday (April 26) to shoot his part in the flick, which is due for release in the UK on February 12, 2016.

And, if all that wasn’t enough, it seems Biebs really has been taking note from Zoolander if his latest spread for 'Hero magazine' is anything to go by.

The star graces the front cover of the publication, where he shows off his more vulnerable side in a series of moody, black-and-white shots.

In the accompanying interview, the ‘Baby’ hitmaker expresses remorse over his bad boy behaviour, stating: “I hope people felt the sincerity in my apologies.

“There are a lot of things that have happened in the last couple years that I'm not very proud of and I feel a responsibility to my fans and to the public who believe in me to make it right. I hope everyone believed it – because it was honest.”

He also went on to confess that Beyoncé left him star-struck, while also giving fans an update on his new album, which has seen him work with the likes of Kanye West and Rick Ross.

JB noted: “The creative process this time around is more personal, when was younger I would take other people's experiences, now I have my own to draw from and it makes all the difference because it's a release.

“It's amazing because I'm able to really work out anything I am feeling in my music.”

Bieber - who recently admitted his split from Selena Gomez has influenced his work - concluded: “I'm nervous whenever I put out new work because it's such a personal journey, but I try to remember music is meant to be enjoyed – so I try to roll with it.”

You can catch more from Justin’s interview in' Hero magazine', out in the UK now.