Why are we so thrown off by a grey-haired Matt LeBlanc?

National Photo GroupComedic actor Matt LeBlanc will be playing himself on a new Showtime series called "Episodes." It looks like a hilarious satire in the vein of "Curb Your Enthusiasm"--in one scene LeBlanc must audition to play himself on a new TV series, against a room full of actors who are trying to perfect LeBlanc's famous line from "Friends," "How you doin'?" So funny! But what has really caught people off guard (us included): Matt LeBlanc is now a silver fox.

One blogger says this makes him feel really old. But let's not forget that LeBlanc is 42. Many 42-year-old men have some grey hair, if not a head full of it, by that age unless they dye it. Perhaps we're not used to seeing a celebrity with his natural hair color. Or maybe the fact that we still watch LeBlanc's character, Joey Tribbiani, on 16-year-old "Friends" repeats makes us associate the actor with still being in his 20s.

With Courteney Cox and Jennifer Aniston still looking so young and fantastic in the public eye, does a little grey hair dramatically age LeBlanc? What do think of his new look? Do you think guys should dye their hair to maintain a more youthful appearance, or do you like how they look au naturel? [EW]