The star was spotted with a brand new look this week and we're not talking about his jeans and t-shirt combo. Damon's famous Hollywood hair has gone and been replaced with, well nothing. He's gone bald and we have to admit, we're not sure we like it!
Damon is in Canada to film his new movie, Elysium, so let's just hope the shaved head is for professional reasons.
How do you rate Matt's look? Let us know by voting below.