Big Apple Music Scene — Mashup-Germany has debuted its mix of the 28 most successful songs of 2011, called Top of the Pops 2011, and would you believe that it uses Britney Spears' "Till the World Ends" and Maroon 5's "Moves Like Jagger" as the base songs? Don't worry, there... more info

Chorus.fm — Britney Spears is 30 years old today. I hope she shaves her head again. more info

Guardian Music — The prodigious pop star marks a milestone on a sometimes rocky road. What's your advice on how to be thirtysomething?Earlier this week, we marked the 176th birthday of the great American author, Mark Twain. Today, we celebrate the 30th birthday of a ... more info

411 Mania — Happy birthday to you… more info

People.com — Watch as Friday's birthday girl grows up from a pop princess to a superstar mother of two more info

Perez Hilton — Such a blessed, wonderful day! That's right, our beloved Britney Spears has officially turned 30, and not only did WE send her some lovely little birthday wishes via Twitter, writing: Happy birthday, @britneyspears!!!! http://perez.ly/uS4zBG I'm stil... more info

Jam! Showbiz Music, Canada — Happy birthday, Britney Spears - the pop princess turns 30 today. more info

ContactMusic — Britney Spears turns 30 today December 2 2011 the former teen-star still at the very highest level of fame well over a decade after her sensational breakthrough in 1998 with the US platinum Number 1 single Baby One More Time Aged just 16 at the time ... more info

Starpulse — Happy birthday, Britney Spears - the pop princess turns 30 today. Britney's come a long way since breaking into showbiz on "The New Mickey Mouse Club," releasing seven best-selling albums, scoopin... more info

ContactMusic — Britney Spears is celebrating her 30th birthday today December 2 2011 13 years after she rose to prominence and quickly became one of the biggest pop stars in the world Its certainly been an eventful career so far - and it began in 1999 with the rele... more info