Robert Pattinson crowned one of world's most powerful celebrities as he makes Forbes debut

Number 50: Robert Pattinson was named one of the most powerful celebrities in the world

The 24-year-old Brit, who shot to fame as Edward Cullen in the hit vampire movie saga, accrued an estimated 17 million dollars (£11 million) in the last 12 months alone.

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R-Patz was ranked 50th on the Celebrity 100 Power List, while his US girlfriend and co-star Kristen Stewart is at 66 with 12 million dollars (£7.95 million).

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Lady Gaga is the highest newcomer in the Forbes list, based on earnings and global exposure, and overshot stars like Madonna (number 10) and U2 (seven) to claim fourth place.

She raked in 62 million dollars (£41 million) in the last year, partly thanks to the eccentric singer's 106-date world tour.

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Oprah Winfrey reclaims the top spot as the most powerful celebrity with 315 million dollars (£208 million) after last year's number one Angelina Jolie dropped to 18th position.

Despite turmoil in his personal life and his professional setbacks, Tiger Woods is at number five with 105 million dollars (£69 million) accrued during the past year.

Avatar director James Cameron returns to the list - this time in third place - for the first time since 1999, earning 210 million dollars (£139 million).

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Simon Cowell is the highest British earner, jumping 14 places to number 11 with 80 million dollars (£53 million), following his last season as a judge on American Idol.

Other British celebrities on the list include Daniel Radcliffe at 82 with 25 million dollars (£16.5 million), Kate Moss at 91 with 9 million dollars (£5.95 million), and David Beckham at 36 with 44 million dollars (£29.1 million) from June 2009 to June 2010.

Despite stock market swings and a faltering global economy, the earnings power of the Celebrity 100 remains resilient.

The top 100 earned collectively 4.7 billion dollars (£3.11 billion) during the past year, up from 4.1 billion dollars (£2.7 billion) the previous year.

Forbes' Celebrity Power ranking is a measurement of entertainment-related earnings over the past 12 months as well as visibility in print, TV, radio and online.

In pictures: The 10 most powerful stars in the world

The full list will be published on www.forbes.com.

Forbes' Celebrity 100 Power List (with earnings):
1. Oprah Winfrey - 315 million dollars (£208 million)
2. Beyonce Knowles - 87 million dollars (£57 million)
3. James Cameron - 210 million dollars (£139 million)
4. Lady Gaga - 62 million dollars (£41 million)
5. Tiger Woods - 105 million dollars (£69 million)
6. Britney Spears - 64 million dollars (£42 million)
7. U2 - 130 million dollars (£86 million)
8. Sandra Bullock - 56 million dollars (£37 million)
9. Johnny Depp - 75 million dollars (£49 million)
10. Madonna - 58 million dollars (£38 million)