Britney Spears Performs On ABC's "Good Morning America"

NEW YORK - DECEMBER 02: Singer Britney Spears performs on ABC's "Good Morning America" at The Big Apple Circus tent at Lincoln Center on December 2, 2008 in New York City. (Photo by Bryan Bedder/Getty Images)

Britney Spears Performs In San Diego

SAN DIEGO, CA - MARCH 2: Singer Britney Spears performs at the Sports Arena on Tuesday, March 2, 2004 in San Diego, California. (Photo by Sandy Huffaker/Getty Images)

UK: Britney Spears Plays Wembley Arena

LONDON - APRIL 26: (UK NEWSPAPERS OUT) Pop star Britney Spears plays first night of her "UK Onyx Hotel Tour 2004" at Wembley Arena on April 26, 2004 in London. The tour is her first UK tour since 2000, and features her greatest hits alongside tracks from current album In The Zone. (Photo by Getty Images)

NRJ Music Awards Ceremony

CANNES, FRANCE - JANUARY 23: Singer Britney Spears performs during the NRJ Music Awards ceremony January 24, 2004 in Cannes, southern France. (Photo by Bruno Bebert-Pool/Getty Images)

Showtime Presents Britney Spears Live In Miami

MIAMI - MARCH 28: (U.S. TABS AND STAR MAGAZINE OUT) Singer Britney Spears performs onstage during Showtime's live broadcast of Britney's Onyx Hotel tour show at the American Airlines Arena March 28, 2004 in Miami, Florida. (Photo by Frank Micelotta/Getty Images)

Sweden: Britney Spears Plays Stockholm

STOCKHOLM, SWEDEN - MAY 11: Popstar Britney Spears performs on stage during her 2004 "Onyx Hotel Tour" at Globe Arena, on May 11, 2004 in Stockholm, Sweden. (Photo by Patrik Jonsson/Getty Images)

Britney Spears Plays Belfast

BELFAST, NORTHERN IRELAND - JUNE 1: Britney Spears performs at the Odyssey Arena June 1, 2004 in Belfast, Northern Ireland. (Photo by ShowbizIreland/Getty Images)

Madonna Performs at Dodger Stadium

LOS ANGELES, CA - NOVEMBER 06: Singer Madonna, with special guest singer Britney Spears, performs during her Sticky and Sweet Tour at Dodger Stadium on November 6, 2008 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)

Bambi Award 2008 - Show

OFFENBURG, GERMANY - NOVEMBER 27: Singer Britney Spears performs during the Bambi Awards 2008 Show on November 27, 2008 in Offenburg, Germany. (Photo by Andreas Rentz/Getty Images)

Britney Spears Performs On ABC's "Good Morning America"

NEW YORK - DECEMBER 02: Singer Britney Spears performs on ABC's "Good Morning America" at The Big Apple Circus tent at Lincoln Center on December 2, 2008 in New York City. (Photo by Bryan Bedder/Getty Images)

"The Circus Starring Britney Spears" Tour Opens In New Orleans

NEW ORLEANS - MARCH 03: **EXCLUSIVE COVERAGE** Singer Britney Spears performs onstage during the opening night of "The Circus Starring Britney Spears" tour at the New Orleans Arena on March 3, 2009 in New Orleans, Louisiana. (Photo by Kevin Mazur/Getty Images for Jive Records)

29th Annual AMAs - Show

Britney Spears performing on the 29th Annual American Music Awards at the Shrine Auditorium in Los Angeles, Ca., January 9, 2002. Photo by Frank Micelotta/ABC/ImageDirect.

Britney Spears Concert

Britney Spears performing at the Nassau Veterans Memorial Coliseum in Uniondale, New York on November 7, 2001. photo by Gabe Palacio/Getty Images

MTV Super Bowl Halftime

Justin Timberlake, Steven Tyler, Britney Spears, and Nelly on stage during MTV's Superbowl halftime show at Raymond James Stadium in Tampa, Fla.. 1/28/01 Photo by Scott Gries/ImageDirect

Michael Jackson Concert - Day 1

Michael Jackson performs with Britney Spears during the Michael Jackson "30th Anniversary Celebration, The Solo Years" concert at New York's Madison Square Garden, Friday, Sept. 7, 2001. Photo by Frank Micelotta/ImageDirect.

2000 MTV Video Music Awards

Britney Spears performing at the 2000 MTV Video Music Awards at Radio City Music Hall in New York City. 9/7/2000

Britney Spears, Madonna, and Christina Aguilera

NEW YORK - AUGUST 28: (U.S. TABLOIDS OUT) Singers Britney Spears(L), Madonna, and Christina Aguilera perform onstage during the 2003 MTV Video Music Awards at Radio City Music Hall on August 28, 2003 in New York City. (Photo by Frank Micelotta/Getty Images)

Britney Spears and Madonna

NEW YORK - AUGUST 28: (U.S. TABLOIDS OUT) Singers Britney Spears(L) and Madonna perform onstage during the 2003 MTV Video Music Awards at Radio City Music Hall on August 28, 2003 in New York City. (Photo by Frank Micelotta/Getty Images)

Britney Spears

NEW YORK - SEPTEMBER 7: American pop star Britney Spears performs a cover of "Satisfaction" by the Rolling Stones on stage at the MTv music video awards on September 7, 2000 in New York. (Photo by Dave Hogan/Getty Images)

Britney Spears

WASHINGTON - SEPTEMBER 3: Singer Britney Spears rehearses for the 2003 "NFL Kickoff Live from the National Mall" September 3, 2003 in Washington, DC. Thousands of U.S. military personnel are expected to attend the concert featuring Spears, Mary J. Blige, Aerosmith, Good Charlotte and Aretha Franklin September 4 in Washington, DC. (Photo by Frank Micelotta/Getty Images)

Britney Spears

PHILADELPHIA - JULY 5: American pop star Britney Spears performs on stage during her "Oops I Did It Again" Tour on July 5, 2000 in London. (Photo by Dave Hogan/Getty Images)

Britney Spears

NEW YORK - NOVEMBER 10: (U.S. TABS OUT) Britney Spears performs on stage during "Spankin' New Music Week" on MTV's Total Request Live outside at the MTV Times Square Studios November 10, 2003 in New York City. (Photo by Scott Gries/Getty Images)

31st Annual American Music Awards - Show

LOS ANGELES - NOVEMBER 16: (U.S. TABLOIDS OUT) Singer Britney Spears performs on stage during the 31st Annual American Music Awards at The Shrine Auditorium November 16, 2003 in Los Angeles, California. (Photo by Frank Micelotta/Getty Images)

Britney Spears Concert

Britney Spears performing at the Nassau Veterans Memorial Coliseum in Uniondale, New York on November 7, 2001. photo by Gabe Palacio/Getty Images

NBA All Star Read To Achieve

Britney Spears performs at the 2002 NBA All Star "Read To Achieve" celebration at the Pennsylvania Convention Center in Philadelphia, Pa. 2/9/02 Photo by Scott Gries/NBAE/Getty Images

31st Annual American Music Awards - Show

LOS ANGELES - NOVEMBER 16: (U.S. TABLOIDS OUT) Singer Britney Spears performs on stage during the 31st Annual American Music Awards at The Shrine Auditorium November 16, 2003 in Los Angeles, California. (Photo by Frank Micelotta/Getty Images)

Britney Spears

WASHINGTON - SEPTEMBER 4: Singer Britney Spears performs for the 2003 "NFL Kickoff Live from the National Mall" September 4, 2003 in Washington, DC. Thousands of U.S. military personnel are attending the concert which features Spears, Mary J. Blige, Aerosmith, Good Charlotte and Aretha Franklin. (Photo by Frank Micelotta/Getty Images)

NRJ Music Awards Ceremony

CANNES, FRANCE - JANUARY 23: Singer Britney Spears performs during the NRJ Music Awards ceremony January 24, 2004 in Cannes, southern France. (Photo by Bruno Bebert-Pool/Getty Images)

1999 MTV Video Music Awards

Britney Spears performing on the 1999 MTV Music Video Awards at the Metropolitan Opera House, Lincoln Center in New York City on September 9, 1999. (Photo by Frank Micelotta/ImageDirect)

Britney Spears

DUBLIN - NOVEMBER 11: American pop star Britney Spears performs on stage at the Mtv European Music Awards held at The Point on November 11, 1999 in Dublin, Ireland. (Photo by Dave Hogan/Getty Images)

Britney Spears

LOS ANGELES - FEBRUARY 23: American pop star Britney Spears performs on stage at the 42nd Annual Grammy Awards at the Staples Center on February 23, 2000 in Los Angeles, United States. (Photo by Dave Hogan/Getty Images)

Britney Spears

LOS ANGELES - FEBRUARY 23: American pop star Britney Spears performs on stage at the 42nd Annual Grammy Awards at the Staples Center on February 23, 2000 in Los Angeles, United States. (Photo by Dave Hogan/Getty Images)

Smash Hits Poll Winners Party 1999

LONDON - DECEMBER 05: Singer Britney Spears performs at the Smash Hits Poll Winners Party 1999 held in the London Arena,London,England on the 5th of December 1999.(Photo by Dave Hogan/Getty Images)

370586 02 Britney Spears

370586 02: Teen pop sensation, Britney Spears performing at the Universal Ampitheater for her "Baby One More Time" tour in Universal City, CA, July 31, 1999 Photo by Brenda Chase/Online USA, Inc.