It looks like girls really do run the world. Led by pop country crooner Taylor Swift, female singers dominated Forbes' annual "Highest Paid Under 30" list.

At only 22 years old, Swift is not only the highest paid musician, but she's also the highest paid entertainer under 30. Forbes reports the singer earned $57 million between May 2011 and May 2012. Each of Swift's three albums -- "Taylor Swift," "Fearless" and "Speak Now" -- has gone platinum four times over. Not to mention that the "Sparks Fly" singer recently ended her world tour, for which she earned up to $1 million per show. She also contributed two tracks to the highly anticipated "Hunger Games" soundtrack.

Swift's star isn't about to fade anytime soon. The starlet recently teased her fans with the possibility of new music on the horizon. "Oh hey! I'm writing you from Nashville, where I just sat in a big room with a lot of people and made a lot of decisions about a lot of things happening very soon," she wrote on her Facebook on Monday. "And as vague as that sentence was, I think you know what it means. Stuff is about to happen. And I love you more than ever."

Swift narrowly edged out 18-year-old Justin Bieber, who came in second place with an estimated $55 million in earnings for the same time period. The success of Bieber's concert movie "Never Say Never" could have contributed to led to an uptick in album sales.

Meanwhile, fellow singers Rihanna ($53 million), Lady Gaga ($52 million, significantly down from the $90 million she pocketed last year), Katy Perry ($45 million) and Adele ($35 million) round out the top six. Who said the music industry was dead?

The only actors who made the cut were the three stars of "The Twilight Saga" -- Kristen Stewart ($34.5 million), Taylor Lautner ($26.5 million) and Robert Pattinson ($26.5 million) -- while rapper Lil Wayne, 29, ranked at No. 8 with $27 million.

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