Lady Gaga has been one the one to topple Oprah Winfrey from her four year reign as number one on the annual Forbes magazine Celebrity Power 100 List.
Gagas millions of fans on different social networking sites - 10 million twitter followers and 32 million facebook friends - meant that she overtook Oprah Winfrey as the most powerful celebrity.
Lady Gaga has also been the first person to reach 10 million followers on twitter.
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