Celebrity Diva to Dealmaker

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Kim Kardashian

Having just inked a three-year, $40 million TV deal with E! to continue to produce reality programming with her family, Kim also has a stake in her sisters' DASH clothing stores and has released three fragrances. When she's not jetting around the world to events, Kardashian often sticks by her computer, where she can reportedly earn up to $25,000 to mention a brand in a Twitter tweet.

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Oprah Winfrey

Born into poverty, Winfrey became a millionaire at age 32 when The Oprah Winfrey Show went national. Declared the first black female billionaire in world history by Forbes, Winfrey has co-authored five books, publishes her own magazine, owns Harpo Productions, Inc., and as of March 2012, has an estimated net worth of $2.7 billion.

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Lady Gaga

Raking in $90 million in 2011 just from her worldwide concert tour alone, Gaga is able to share her story with 32 million Facebook fans and 10 million Twitter followers, most of whom presumably helped her reach one million digital downloads of "Born This Way" in its first five days of release.

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Bethenny Frankel

"The most difficult thing in my journey is the way that people have reacted to my making money….It surprises me because you always think about people making money and it changing them, you never think about it changing everything else," Skinnygirl mogul Frankel -- who earned $55 million in 2011 selling everything from booze to books -- tells Forbes. "Fame isn't the thing that changed the people around me, but money is."

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Gwen Stefani

Rising to fame as a member of No Doubt, Stefani -- a mom of two -- has seen her wealth increase with the release of her L.A.M.B. clothing line, which expanded to include the Harajuku Lovers line in 2005. Also a spokeswoman for L'Oreal, Stefani has two fragrances that bear her name.

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Victoria Beckham

Dubbed Posh Spice during her stint as a Spice Girl, Beckham has since put her singing career on hold to become one of the fashion industry's most sought-after designers. Loved by celebs including Jennifer Lawrence, Eva Longoria and Kim Kardashian, Beckham's self-titled collection paved the way for her own brand of jeans, sunglasses, handbags and jewelry.

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Tyra Banks

The fourth richest supermodel in the world, Banks -- who appeared twice on the cover of Sports Illustrated's Swimsuit Issue -- helmed her own talk show for five years before its cancellation in 2010. Currently appearing as the host of America's Next Top Model, Banks released her first novel in 2011 and graduated from Harvard Business School in 2012.

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Jessica Simpson

"I have the best job in the world!" new mom Simpson -- whose Jessica Simpson brand has raked in $750 million in 35 countries -- tells Us. Making frequent appearances at her chic but affordable line's workroom, the Fashion Star mentor is very hands-on. "Nothing goes out without me seeing it or my mom [Tina Simpson, cocreative director] seeing it," Simpson explains.

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Heidi Klum

Ranked No. 83 on Forbes' Celebrity 100 List, Project Runway's hostess made her millions thanks to a 13-year Victoria's Secret modeling career coupled with brand endorsements and her own line of athletic apparel for New Balance sold on Amazon.com. In addition to Project Runway, the single mom of four also hosted Lifetime's Seriously Funny Kids and Germany's Next Top Model.

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Jennifer Lopez

Getting her first big break in 1997's Selena, former In Living Color fly girl Lopez is the highest-paid Latin actress in Hollywood with an estimated $250 million net worth. Selling more than 55 million records worldwide, Lopez -- who appears in this summer's What to Expect When You're Expecting -- signed on to judge American Idol in 2011. She continues to appear as a spokesmodel for L'Oreal and has her own line of clothing and fragrances.