Britney Spears became the biggest female artist in music revenues in 2012, with an estimated $ 58 million in record sales, live shows and TV appearances.
The "Princess of Pop" revenue increased significantly this year, when he signed to participate as a judge on the last season of The X Factor USA, which adds to their latest album, 2011, "Femme Fatale" being certified platinum and live dates worldwide.
Second of Forbes Magazine, Taylor Swift appears, who has published one of the biggest selling albums of 2012, "Red". The country star was secured $ 57 million.
Followed by singers Rihanna, with $ 53 million; Lady Gaga, with $ 51 million, and Katy Perry, with $ 45 million, who round out the top 5.
Adele and Beyoncé, who debuted no no disk in 2012, appear in position 6 and 7 respectively. The complete list of ten of Sade, Madonna and Shakira.