M magazine has compiled a list of the top-earning teen stars. After seeing these figures, it is hard to believe that some of these celebrities are still practically kids!

Miley Cyrus tops the list at an estimated net worth of $120 million. Cyrus has been raking in the dough since her premiere as Disney's 'Hannah Montana,' and she has also starred in motion pictures like 'The Last Song.' Not to mention that she has had huge success as a recording artist, cranking out mega hits like 'Party in the U.S.A.' and 'The Climb.' Not bad for someone who isn't even 20 yet!

Coming in at a not-so-close second is heartthrob Justin Bieber. The 'Never Say Never' actor, 17, is worth approximately $66.5 million, thanks to his 3D biopic and monstrous album sales. Bieber's debut album sold more than 700,000 copies in just the first three weeks! There is no doubt that Bieber's net worth will continue to grow as time passes, and we think in a few short years he may become the front-runner on this list.

Also making the list are Nick Jonas ($18 million), budding singer-songwriter Abigail Breslin ($12 million), Miranda Cosgrove ($7 million) and Selena Gomez ($4 million). Happy shopping, teen millionaires!

Watch the Miley Cyrus 'Can't Be Tamed' Video