Jon Hamm's Changing Looks

Is that a Caesar cut? The star of The Division went Clooney for the BAFTA L.A. Britannia Awards.

Hamm supported longtime girlfriend, Jennifer Westfeldt's turn in Wonderful Town at the opening night of the Broadway show.

Now firmly established as a crush-worthy Mad Men lead, Hamm opted for a Don Draper-inspired coif for an L.A. benefit gala.

A grown-out cut at the Screen Actors Guild Awards.

The double nominee made the scene at the Emmy Awards with slicked-back hair.

Hamm celebrated being between seasons with a beard at the SAG Awards.

He popped on a flat cap for the premiere of Get Him to the Greek.

The Bridesmaids actor was all dreamboat at the LACMA Inaugural Art + Film Gala.

The triple nominee (!) looked suave at the Emmy Awards.

Hamm goes rugged with a full-on beard.

The actor headed back to his roots, opting for his signature sleek look.

Hamm donned a fine gray suit for the Mad Men live read at The Theatre at Ace Hotel Downtown L.A., where he sported his signature hairstyle.

Clean cut and rocking a slightly unbuttoned shirt, the actor attended the AFI Awards.

Hamm sported a slightly scruffy look and tousled strands at the Film Independent Spirit Awards.