The eccentric star was catapulted to fame in 2009 thanks to a distinctive sound and collection of quirky costumes.

The newcomer to the Celebrity 100 list teamed up with a host of artists to draw from their profiles, including Beyonce in the hit single 'Telephone' and its equally popular, if controversial, music video.

Besides 106 days touring, grossing $95m, Lady Gaga is also knows how to play the endorsement game – teaming up with Polaroid, Virgin Mobile, Monster Cable and Viva Glam. These together made her one of the highest earning stars, on a par with music veterans who took years to get where they are.