This year, Lady Gaga topped Forbes' Celebrity 100 list knocking Oprah down to second place. The list of the most powerful people in the entertainment business was released and Justin Bieber, U2, Bon Jovi, Taylor Swift and LeBron James all dominating the top ten. Forbes reported that Lady Gaga won the top spot this year due to her 32 million Facebook fans, 10 million Twitter followers and $90 million she earned while touring. Lady Gaga also had 1 million digital downloads for her single Born This Way in a matter of five days. In the past seven years, Oprah has lost the number-one spot only three times. Oprah earned $290 million last year. Just Bieber made his debut on the list in the third spot. The 17-year-old Canadian pop star earned $52 million through his music sales, concerts and 3-D documentary movie. His hit single Baby had more than 500 million views on YouTube. For the entire list visit Below is the top ten from the list.