Jon Hamm & Alexis Bledel Support Vincent Kartheiser at 'Billy & Ray' Opening Night!

Jom Hamm is dapper in a suit as he hits the red carpet at the opening night of Billy & Ray held at The Vineyard Theatre on Monday (October 20) in New York City.

The 43-year-old Mad Men actor was joined by his partner Jennifer Westfeldt and Alexis Bledel as they all came out to show their support for Vincent Kartheiser, who stars in the show.

PHOTOS: Check out the latest pics of Jon Hamm

Jon and Vincent, 35, star in Mad Men together while Alexis, 33, and Vincent tied the knot back in June in a secret ceremony.

10+ pictures inside of Jon Hamm, Alexis Bledel and others at the opening night of Billy & Ray…