Justin Bieber posted this picture on his instagram with the caption, "Live life love life -justin bieber" on December 3, 2013. (Courtesy of Instagram)
Entertainer Britney Spears attends the iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2013 in Las Vegas, Nevada. (Jason Kempin/Getty Images Entertainment/ Getty)
The 2013 Elton John AIDS Foundation Academy Awards Party held at The Pacific Design Center in Los Angeles, California on February 24th 2013 (Fame FlyNet)
Singer Britney Spears attends the Los Angeles premiere of 'The Smurfs 2' at Regency Village Theatre on July 28, 2013 (Photo by Michael Buckner/Getty Images Entertainment/ Getty)
Britney Spears make a brief appearance on the red carpet at 'KIIS FM's Wango Tango' at the Home Depot Center in Carson, CA 05/11/2013 (Splashnews)
Recording artist Britney Spears attends City Of Hope Honors Halston CEO Ben Malka With Spirit Of Life Award - Red Carpet at Exchange LA on October 10, 2012 (Michael Kovac/Getty Images Entertainment/ Getty)
Singer Britney Spears arrives at Clive Davis and The Recording Academy's 2012 Pre-GRAMMY Gala and Salute to Industry Icons Honoring Richard Branson at The Beverly Hilton hotel on February 11, 2012 in Beverly Hills, California.
Singer Britney Spears walks the red carpet before the first day of taping the second season of The X Factor auditions for which she is a judge at The Frank Erwin Center on May 24, 2012 in Austin, Texas.
Britney Spears on a red bus tour
(Courtesy of Instagram/ RCA Records Label)
Britney Spears sighting at BBC radio one on October 16, 2013 (Getty)
Britney Spears seen at Capital radio for her new album launch