She's the hilarious star of one of the biggest comedies on television. The adorable KALEY CUOCO is here! The gang of "The Big Bang Theory" has been making us laugh for 7 incredible seasons, and Kaley's here to give Ellen the scoop on what's in store for America's favorite gaggle of smarty-pants. Kaley and Ellen always get up to something really fun. There's a reason she's an Ellen Show favorite! Speaking of science whizzes, Ellen's favorite scientist is in the building! STEVE SPANGLER has made it rain ping pong balls, giant colorful foam, film canisters, and so much more, all in the name of science! Whenever he's here, he really blows the roof off, and we mean that literally. Don't miss what he's blowing up today! Then, five of the hottest guys in pop music are swinging by Ellen's DJ booth! The boys of THE WANTED are in the studio to catch up with Ellen and fill in as her guest DJs for the day, but we couldn't have these five guys over without having them perform! They're going to sing their new hit "Show Me Love" from their upcoming CD, "Word of Mouth." This Thursday on Ellen is going to be tons of fun. You'll be glad you came!