Shake Your Groove Thing
performed by Peaches & Herb

A musical episode: Fez stars in the school musical pageant, but worries his friends will not attend to watch. His daydreams and fantasies throughout the episode include music from The Turtles, the Steve Miller Band, Nazareth, the Ramones, and Peaches & Herb.

Izzie plans a party for her old boyfriend, while Meredith believes she may be in trouble when something goes wrong during a procedure. At the party, Bailey spots Shepherd and Meredith together. Cristina and Burke have sex in an on-call room.

This commercial for Always Discreet liners shows different women dancing and "shaking their groove thang", without worry of urinating in their pants because of a weak bladder. Go for it, ladies. Dance away! "Always Discreet Commercial - Pads & Liners" Sensitive bladder? Never miss a chance to dance just because you happen to sprinkle a little tinkle. Introducing a revolution in bladder leak protection from the experts in feminine protection. New Always Discreet for sensitive bladders. Up to 40% thinner for superior comfort. Absorbs two times more than you may need for dance all you want protection. New Always Discreet. Now bladder leaks can feel like no big deal, because hey - pee happens. Visit alwaysdiscreet.com for coupons and your free sample. (Lyrics) Shake your groove thing, shake your groove thing Yeah, yeah Show 'em how you do it now Shake your groove thing, shake your groove thing Yeah, yeah Show 'em how you do it now Shake your groove thing, shake your groove thing Yeah, yeah Show 'em how you do it now Sensitive bladder? Always Discreet Bladder Protection Now bladder leaks can feel like no big deal. alwaysdiscreet.com for coupons and your free sample.

Shrek Goes Fourth is currently in pre-production, aiming for release on May 21, 2010.