What do Andy Dick, Sara Rue, Jessica Biel and the "7th Heaven" gang all have in common? All agreed to get in on the fun of Trading Spaces! Tune in Sunday, April 13, at 9 p.m. ET/PT to see these celebrity episodes on a special night.

Join Andy Dick and Sara Rue, stars of the ABC sitcom "Less Than Perfect," as they trade spaces at 9 p.m. Madness will ensue as funnyman Andy Dick teams up with Genevieve as they work with Andy's friend Lacey to design a new home office for Sara. Vern will be cooking up ideas with Sara and her husband Mischa to update Andy's kitchen. Don't wanna miss one of the wildest reveals yet? Then get a reminder!

At 10 p.m. ET/PT, TLC will feature an episode with "7th Heaven" stars George and Geoff Stults along with Beverley Mitchell and former "7th Heaven" star, the enchanting Jessica Biel. It's a family affair as the WB stars swap spaces. Real- life brothers George and Geoff Stults will see if their on-screen love for Jessica Biel and Beverley Mitchell can translate into happiness in the home. Hildi helps the Stults brothers as they work their magic in Beverley's space, while Frank joins Jessica and Beverley to transform the boys' bachelor pad. Sign up for a reminder!

Click on an image to learn more about the celebrities from our Trading Spaces Goes Hollywood special. You can also visit our celebrity bio gallery.