Katherine Heigl 29, married musician Josh Kelley 27, on Sunday afternoon in Deer Valley, Utah. According to Heigl’s friend, T.R. Knight, the ceremony was incredible and beautiful.

The actress plays Izzie in the hit TV drama Grey’s Anatomy. The 30 minute ceremony was witnessed by 100 family members and friends. Besides Knight, other Grey’s co-stars in attendance were Kate Walsh and Sandra Oh.

Kelley, singer and songwriter, is set to release a new album, Special Company on February 5, 2008. His last album, Just Say the Word, released in June 2006.

A large heat white tent was dramatically lite for the evening festivities. The tent was festooned with large white drapes, silver chairs with white cushions and white carpeted floor. The couple exchanged vows on an altar that was flanked by large brass candleholders.

We’ve included additional photos of the couple.

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Filed under: Celebrity Couples, Katherine Heigl