Justin Bieber earned an estimated $53m in 2010

"Justin Bieber had a very good year. Seriously, like a major one that rivals most corporate CEOs'. According to a People magazine ranking of the top-earning teen actors and musicians, Bieber, 17, raked in $53 million in 2010.
Most of that cash came from his smash movie, "Never Say Never," and his hit fragrance, "Someday." (By contrast, girlfriend Selena Gomez made $5.5 million.) Bieber reached that big-baller level thanks to the record-breaking returns from "Never," which is the most successful concert-themed film in U.S. history, with more than $73 million earned to date.
Nipping at his heels was veteran teen starlet Miley Cyrus, whose haul was $48 million, almost all of it earned from touring.
Other big earners on the list include "Twilight" top wolf Taylor Lautner, who earned $8.5 million for the final two installments of the movie series, as well as $7.5 million for his upcoming starring debut in the action thriller "Abduction.""
Source:  Data compiled by People Magazine, reported by MTV, 17th August 2011