Vince Vaughn shaves his head, goes completely bald

Vince Vaughn looks nearly unrecognizable as a completely bald man.

The 46-year-old star debuted his shocking new 'do when he was spotted going for a walk in New York City on Thursday. Vaughn's rep tells ET that the actor went bald for his upcoming role in "Brawl in Cell Block 99."

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The action film, which also stars Jennifer Carpenter and Don Johnson, is about a former boxer-turned-drug runner that lands in a prison battleground after a deal gets deadly.

Vaughn's new look comes just days after he showed up with a full head of hair to the premiere of "Hacksaw Ridge" at the Venice International Film Festival in Italy. The father of two looked quite dapper in his tuxedo as he posed alongside co-stars Mel Gibson, Teresa Palmer and Andrew Garfield.

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