Lady Gaga comes only behind power veterans Oprah, James Cameron, and Beyonce on Forbes 2010 Celebrity 100 Power List.

According to Forbes.com， the judging criteria are as follows: “Earnings estimates are for June 1, 2009 to June 1, 2010. Includes dollars earned solely from entertainment income.” Other factors are radio/tv mentions number of magazine covers, and web hits on Google, and twitter and facebook followers.

2009 was the year of Lady Gaga. She continues to show her unique personal style without any doubt or fear, and she made her way as a newcomer to the list with a powerful gesture.

Forbes magazine unveiled “The Celebrity 100” in 2010 on Monday. This list is the ranking of the richest and most powerful people in entertainment business all around the world this year. Renowned talk show host Oprah Winfrey takes back her crown while pop icon Lady Gaga enters into the list for the first time.

Following are top 10 of them:

No. 1 Oprah Winfrey

2009 Rank: 2