"Hit Me Baby One More Time!" if you live on this planet, you must have heard of this song, and if you are under 30, you probably know it almost by heart. Britney Spears is one of the most popular singers in the western world, selling over 200 million albums, and winning more than 300 prizes over the years. Spears, who was born 1981, even received a life achievement award in 2011, at the age of 30. Not only a singer, in 2012 Spears joined the X-Factor crew and was one of the judges for two years. Since 2013, Spears has a residency show in Vegas, entitled "Britney: Piece of Me".