It’s official. Glee producer, Ryan Murphy, confirmed to Ryan Seacrest that Britney Spears will be appearing on the episode paying tribute to the pop star. The pop princess will be seen a couple of times throughout the themed episode. Not sure if she’ll be playing herself, but a cameo is a done deal.
Murphy also divulged that many of the Britney numbers will be hallucinations while being under anesthesia at the dentist played by John Stamos. Their hallucinations will take form in fantasies by the cast on how they can be like Spears.
find out what songs will be included after the episode after the jump

In the spirit of the release of the Britney Spears “The Singles Collection,” I’ve decided to review her music videos and bring you a list of Britney’s Top 10 Music Videos of all time. She’s had her ups and downs, but Britney is back on top of the world again, proving she’s here to stay. Excluding the Mickey Mouse Club, Britney’s career goes back to 1998 when her first video was made.
She recently toured the world, bringing the Circus from city to city, and she also recently released a new single “3″ as well as the corresponding music video. Will this video make the cut?
Here are Britney’s Top Ten Music Videos of all time. Let’s start with number ten.

Year: 1999
Album: Baby One More Time
Director: Nigel Dick
Theme: Night Club/Dancing
It’s not my favorite song, but it is a trademark original Britney type video. Cheesiness and dancing, and even some cameos from Sabrina the Teenage Witch (Melissa Joan Hart) and Adrian Grenier, before he became big on Entourage and The Devil Wears Prada. What do I love about this video? The dancing with the hundreds of back up dancers in what looks like a high school gymnasium converted into a club. Seriously, I love when she dances, and even more so when she’s got synchronized backup. Watch Crazy here.

