Singer Britney Spears performs "Gimme More" onstage at the 2007 Video Music Awards at the Palms Casino Resort.Michael Caulfield/WireImage.com - Monday, September, 10, 2007, 5:10 PM

Singer Britney Spears performs "Gimme More" at the 2007 Video Music Awards at the Palms Casino Resort.Michael Caulfield/WireImage.com - Monday, September, 10, 2007, 5:10 PM

Singer Britney Spears performs at the 2007 Video Music Awards at The Pearl Concert Theater.Kevin Mazur/WireImage.com - Monday, September, 10, 2007, 5:10 PM

Singer Britney Spears performs at the 2007 Video Music Awards at The Pearl Concert Theater.Kevin Mazur/WireImage.com - Monday, September, 10, 2007, 5:10 PM

Britney Spears performs at the 2007 Video Music Awards at The Pearl Concert Theater.Kevin Mazur/WireImage.com - Monday, September, 10, 2007, 5:10 PM

Premiere: Britney Spears and Kevin Federline at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears and Kevin Federline at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Steve Granitz, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears at the LA premiere of Warner Bros. Pictures' Charlie and the Chocolate Factory - 7/10/2005Lester Cohen, Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Taryn Manning, Britney Spears, Anson Mount and Zoe Saldana at the Hollywood premiere for Paramount's Crossroads - 1/11/2002Steve Granitz/Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Taryn Manning, Britney Spears, Anson Mount and Zoe Saldana at the Hollywood premiere for Paramount's Crossroads - 1/11/2002Steve Granitz/Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Britney Spears, Anson Mount and Zoe Saldana at the Hollywood premiere for Paramount's Crossroads - 1/11/2002Gregg DeGuire/Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Justin Timberlake and Britney Spears at the Hollywood premiere for Paramount's Crossroads - 1/11/2002Steve Granitz/Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Justin Timberlake and Britney Spears at the Hollywood premiere for Paramount's Crossroads - 1/11/2002Steve Granitz/Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Justin Timberlake and Britney Spears at the Hollywood premiere for Paramount's Crossroads - 1/11/2002Steve Granitz/Wireimage.com - Thursday, September, 21, 2006, 10:21 AM

Premiere: Justin Timberlake and Britney Spears at the Hollywood premiere for Paramount's Crossroads - 1/11/2002Gregg DeGuire/Wireimage.com - Thursday, September, 21, 2006, 10:21 AM