Richest Celebrities Under 30

Kristen Stewart

Age: 22 Estimated Net Worth: $55 million Best known for playing Bella Swan in the "Twilight" series, Kristen Stewart has helped the franchise break box-office records over and over again. It comes as no surprise that K.Stew was named No. 1 on Forbes magazine's list of Hollywood's Best Actors for the Buck in 2011

Rihanna

Age: 24 Estimated Net Worth: $60 million In 2012, Time magazine named Rihanna one of the most influential people in the world. Since she hit the music scene in 2005, RiRi has sold more than 25 million albums and 60 million singles worldwide. The star, who is the face of Vita Coco and Gucci, was ranked as Forbes' fourth most powerful celebrity in 2012 and earned $53 million between May 2011 and May 2012.

Robert Pattinson

Age: 26 Estimated Net Worth: $62 million Since landing a leading role as Edward Cullen in "Twilight," Robert Pattinson has established himself as one of the most in-demand actors in Hollywood. CelebrityNetWorth.com reports that Rob takes home an estimated $25 million per "Twilight" film. With the fifth installment of the series due to premiere later this year, we imagine RPatz has plenty to write home about!

Taylor Swift

Age: 22 Estimated Net Worth: $80 million Country cutie Taylor Swift's list of musical accomplishment appears to be never-ending. To date, she has won six Grammy Awards, 10 American Music Awards, seven Country Music Association Awards, six Academy of Country Music Awards and 13 BMI awards and has sold more than 22 million albums, with 50 million song downloads. You know what that means: She's loaded! In 2011 she made more than $45 million from album sales, touring and endorsement deals with companies like CoverGirl, Elizabeth Arden and Target, making her one of the wealthiest music artists around.

Lady Gaga

Age: 26 Estimated Net Worth: $90 million Stefani Joanne Angelina Germanotta, aka Lady Gaga, has sold 23 million albums and 64 million singles worldwide since releasing her debut album, "The Fame," in 2008. It's no surprise that Gaga settled in at No. 4 on the 2011 Billboard list of top moneymakers, grossing a mere $25 million that year.

Justin Bieber

Age: 18 Estimated Net Worth: $112 million Named Forbes' third most powerful celebrity in the world in 2012, the Biebs remains unstoppable. Since his debut album, "My World," this pop superstar has sold more than 15 million albums and has accumulated a "Belieber" fan following that rivals the notorious Beatles fanatics of the '60s. He's also not one to turn down an endorsement deal, tying his name to a fragrance, "Someday"; a line of OPI nail polish; and Proactiv skin-care products.

Miley Cyrus

Age: 19 Estimated Net Worth: $120 million Miley Cyrus made her mark in Hollywood on the Disney sitcom "Hannah Montana." Following her success on TV, she went on to top the Billboard Hot 100 chart with her single "Party in the U.S.A." Miley, whom Guinness World Records has named "most charted teenager," has also raked in a ton of dough touring -- while also launching a feature film career.