Forbes' newest list of top 100 most influential and powerful celebrities is out and Lady Gaga has taken the number one spot, which Oprah has had for four different years. The list ranks celebrities based on their online popularity and income. Oprah came in at number two, with Justin Bieber close behind at number 3. Other celebrities include Charlie Sheen at number 28, Jennifer Aniston at 21 and Cameron Diaz at 81.

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