Jon Hamm & Jennifer Westfeldt: Costume Designers Guild Awards Couple!

Jon Hamm suits up while attending the 2013 Costume Designers Guild Awards at The Beverly Hilton Hotel on Tuesday (February 19) in Beverly Hills, Calif.

The 41-year-old actor was joined by his partner Jennifer Westfeldt.

PHOTOS: Check out the latest pics of Jon Hamm

Connie Britton was also spotted looking all dressed up while attending the ceremony, where she presented an award.

Last week, Jon and Jennifer were seen grabbing lunch together on Valentine’s Day.

FYI: Jon is wearing a Dolce&Gabbana tuxedo.

10+ pictures inside of Jon Hamm and Jennifer Westfeldt attending the Costume Designers Guild Awards together…