Jack Osbourne and actor pal Danny Masterson are trying to make moustaches hip.

The two friends are both trying to grow moustaches because they're convinced it's high time for the top-lip facial hair to make a return to fashion.

Osbourne says, "Danny just said, 'You need to grow a moustache,' and I was like, 'OK.'

"It's like, 'Hey have you still got your moustache, I still have my moustache - awesome.' There's a level of respect that comes to one with a moustache."