SIMON COWELL ("American Idol") gives us the inside scoop on "Idol" and plays "Celebrity" with Ellen. JANE KACZMAREK ("Malcolm in the Middle") checks out our backyard. Ellen welcomes back the couple (ALECIA & JERROD) who got engaged on our show and looks at clips of their engagement party from the weekend -- Tony was the DJ! Plus, it's a western barbeque in the backyard with a mechanical bull!