Lady GagaLady Gaga, known as much for her flamboyant outfits and personality as her infectious pop hits, is on track to make $100 million this year, according to Forbes. That's a lot of zeros.

The 'Bad Romance' singer is set to make almost $40 million more than she did in 2010. Last year, she was the seventh-highest paid musician in the world, making just $1 million less than hip-hop powerhouse Jay-Z.

How did she earn so much money? Touring, touring, touring. Lady Gaga's shows command a much higher average ticket price ($102) than other current acts, and she put on a whopping 138-stop tour last year.

Experts estimate Gaga's album sales will also significantly boost her earnings. She'll release her next album, the highly anticipated 'Born This Way,' in May and could earn up to $15 million from record sales alone. Her last album, 'The Fame,' sold more than 12 million copies. Many expect 'Born This Way' to meet, if not exceed, that number.