Grey’s Anatomy star Katherine Heigl married her musician boyfriend, Josh Kelley, (see photos below) earlier today in Deer Valley, Utah.

Her co-star, T.R. Knight, was a groomsman, and gushed about the wedding, telling US Magazine that “It was incredible. It was beautiful.”

The ceremony took place at sunset under a white tent with more than 100 guests in attendance for the wedding, including Sandra Oh and Kate Walsh.

Unitarian minister Tom Goldsmith officiated the ceremony. The bridesmaids were decked out in red and Katherine walked down the aisle to an acoustic song that was written by Kelley, which was played by a cello and guitar players.

See more photos of Katherine Heigl and Josh Kelley below.