Click the photo below to see the complete gallery of Knight and Cornelson at the Ball

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Grey’s Anatomy star T.R. Knight, 35, and his boyfriend, Mark Cornelsen, 19, attended the 7th Annual Chrysalis Butterfly Ball in L.A. on Saturday night. The totally hot couple walked the red carpet hand-in-hand, giving their support to Chrysalis, the Los Angeles based organization promoting employment for homeless and disadvantaged people.

If you want to know more about Mark Cornelson, click here. 

Knight was recently nominated for the Top 100 hottest guys on AfterElton. In an email to the site, Knight had this to say about his nomination:

“Wait a second … I don’t even have abs! Thank you, AfterEltoners, I’m very flattered.”

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