Forbes compiled a list of the world’s 20 richest superstars under 25 years of age, checking earnings from June 2006 to June 2007. The earnings are total but before taxes or management fees, including salaries, winnings, endorsement deals and royalties.

The top 4 are all athletes:

1 LeBron James, 22, NBA forward, USD27 million. He’s now constructing his 35,000 sq ft house which has a bowling alley, casino and barber shop.

2 Reggie Bush, 22, NFL running back, USD24 million.

3 Maria Sharapova, 20, tennis, USD23 million, of which only USD3.8 million is from winnings, the rest from endorsements with Pepsi, Nike, Canon, Colgate-Palmolive and Motorola.

4 Michelle Wie, 18, golf, USD19 million. USD16 million of that is from endorsements.

5 Mary-Kate and Ashley Olsen, 20, child twin stars-turned-fashion icons, USD17 million EACH.

6 Daniel Radcliffe, 18, “Harry Potter” actor, USD15 million. 6 years ago, in the first Potter film, he was reportedly offered USD145K. Then, in the latest Potter film, he was reported to have been paid USD14 million. Amazingly, he made more than A-list Hollywood actresses Jennifer Aniston (USD14 million) & Sandra Bullock (USD10 million).

7 Hillary Duff, 20, pop star-actress-’tween merchandise mogul, USD12 million.

8 Avril Lavigne, 23, singer, USD12 million

9 Carmelo Anthony, 23, NBA, USD10 million

10. Keira Knightley, 22, actress, USD9 million

The top 20 also include:

Dakota Fanning, 13, actress, USD4 million. She commands as much as USD3 million for major films.

Miley Cyrus, 15, “Hannah Montana” ctress, USD3.5 million.

Emma Watson, “Harry Potter” actress, USD4 million.

Rupert Grint, “Harry Potter” actor, USD4 million.

Carrie Underwood, singer, USD7 million

Lindsay Lohan, actress, USD3.5 million

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