Oprah Winfrey topped Forbes 100 Most Powerful celebrities list. Forbes analyzes celebrity earnings, Google hits, press mentions, TV/radio mentions and the number of times an A-lister appears on the cover of 32 major consumer magazines. Tiger Woods is 2nd, Jay Z was 9th, Kobe Bryant was 23rd, Shaq was 25th, 50 Cent is 32nd, Michael Jordan is 35th, P Diddy's 43rd, Le Bron James was 48th, Will Smith is the 57 th, Tyra is 61rst and Serena Williams is 69th. The list says between June 2006 and June 2007 Oprah made 260 million dollars, Jay Z made 83 million, P Diddy made 23 million, and 50 Cent made 33 million.
See the whole list here.