Big Bang Theory hottie Kaley Cuoco is heading to Grey’s Anatomy – she’ll be guest starring on the two-hour finale on May 14.

Kaley Cuoco confirmed, “I am working on Grey’s Anatomy next week. It is a big ol’ secret. I have no clue what I am doing. I swear on my life that I have no idea what I am playing because it is the finale and they are keeping it under wraps until the last possible moment.”

Cuoco continues, “They called me directly last week and asked if I would do a part on the finale episode. I didn’t hesitate because I am a fan of the show, and it’s a huge show so it’s probably good for the career, too. And I haven’t been able to do any drama in a long time.”