Singer Britney Spears attends „The X-Factor“ viewing party at Mixology on Thursday, Dec. 6, 2012, in Los Angeles. (Photo by Dan Steinberg/Invision/AP)
Singer Britney Spears arrives at KIIS FM’s Wango Tango in Los Angeles on Saturday, May 14, 2011. (AP Photo/Dan Steinberg)
FILE – In this Aug. 9, 2009 file photo, Britney Spears arrives at the Teen Choice Awards in Universal City, Calif. (AP Photo/Matt Sayles, file)
In this photo provided by Caesars Entertainment, Britney Spears rehearses „Britney: Piece of Me“ at Planet Hollywood Resort & Casino on Thursday, Dec. 26, 2013, in Las Vegas. Spears began her two-year Las Vegas casino residency Friday. (AP Photo/Caesars Entertainment, Denise Truscello)
