Brad Pitt has spoken out in defence of his newly-acquired 'tach - deeming it 'fashion'.

The other half of Hollywood's hottest couple has hit back at critics, taking pride in the fact he can pull off a hairy top lip.

Brad told People, "It's fashion. Who am I without creative facial hair?"

He added, "I consider it very brave."

And Brad also had something to say about his pal George Clooney who is also currently sporting some serious facial hair.

"I cannot get this guy out of my slipstream," he joked.

"He calls me up and wants to know what I'm wearing – and then he shows up in the same thing.

"Next thing you know he's going to have six kids. Just got to tell you it's getting really old."

Brad cultivated a moustache for his upcoming role in Quentin Tarantino's Inglourious Basterds in which he plays a WWII soldier.