It's a comedy extravaganza on Ellen! Stars from two of the biggest comedy shows on TV are here! First, KALEY CUOCO is the charming and hilarious star of the hit CBS show, "The Big Bang Theory." When Kaley and Ellen get together, they always leave 'em... (more) laughing! Then, one of the stars of "Parks and Recreation," ADAM SCOTT is here for the first time! He was just named one of Entertainment Weekly's "Artists to Watch," and you can watch him right here! It's going to be one hilarious Thursday on Ellen! Also, LUPE FIASCO is here to perform one of the hottest songs of the year, "The Show Goes On" from his CD, "Lasers."