KEY POINTS:
Mary-Kate and Ashley Olsen have topped the Young Hollywood's Top-Earning Stars list compiled by Forbes.com.
The 20-year-old twins, who rose to fame in ABC sitcom Full House, pocketed $40 million last year from their retail empire, making them the richest under-21s in showbiz.
The young business moguls-and-actresses are reportedly worth around £300 million thanks to their "tween" merchandise, clothing line and movies.
Harry Potter star Daniel Radcliffe, 17, who earned an estimated $13 million for his lead role in Harry Potter and the Order of the Phoenix which is due out later this year, came second.
Lindsay Lohan, 20, rounded off the top three with earnings of $6 million last year. Her position comes in spite of a troubled 12 months in which she was castigated for her unprofessional behaviour on the set of Georgia Rule and checked into rehab for alcoholism.
Oscar-nominated actress Dakota Fanning, 13, claimed fourth place with $4 million.
The youngest star on the list is 10-year-old Oscar-nominated actress Abigail Breslin who came eighth with $1.5 million.
Also making the top ten was 16-year-old singer Joanna 'JoJo' Levesque, who pocketed $1 million.
Forbes.com's Young Hollywood's Top-Earning Stars
1 Mary-Kate and Ashley Olsen, 20 - $40 million
2 Daniel Radcliffe, 17 - $13 million
3 Lindsay Lohan, 20 - $6 million
4 Dakota Fanning, 13 - $4 million
5 Amanda Bynes, 20 - $2.5 million
6 Hayden Panettiere, 17 - $2 million
7 Vanessa Anne Hudgens, 18 - $2 million
8 Abigail Breslin, 10 - $1.5 million
9 Tyler James William, 14 - $1.2 million
10 Joanna 'JoJo' Levesque, 16 - $1 million
- BANG! SHOWBIZ
