Statement-Making Stars

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Katy Perry

All eyes were on the "California Gurls" singer at May's MET gala in NYC, where she donned a glow-in-the-dark gown with built-in LED lights. "It's so much fun!" she told Us. "I feel like I have to wear something to represent women who do their own thing and have spontaneity!"

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Rihanna

The singer's edgy fashion choices have been turning heads for years. "My stylist and I always try to do something sexy, but never too girly," Rihanna -- baring her booty at a July 4 concert -- tells W magazine. "We always try to put a little toughness in there."

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Leonardo DiCaprio

The Inception star frequently sounds off on environmental activism, and is currently working with the World Wildlife Fund to save tigers. The actor recently traveled with the organization to Africa in an effort to save the estimated 3,200 tigers left in the wild from extinction.

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Willow Smith

Will and Jada Pinkett-Smith's daughter, 9, already has a penchant for making a statement through her wild wardrobe and shaved 'do. "She is young, edgy, and individual," the little girl's stylist, Rob Zangardi, tells Us.

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Pamela Anderson

The former Playboy model makes a statement by supporting PETA. In a new ad for the animal rights group, Anderson poses in a bikini with her body marked off in "rump," "ribs" and "breast," along with a logo reading: "All Animals Have the Same Parts."

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Shiloh Jolie-Pitt

Angelina Jolie and Brad Pitt's four-year-old is "like a little dude," mom Jolie tells Vanity Fair. "She wants to be a boy. So we had to cut her hair," the actress says. "She likes to wear boys' everything. She thinks she's one of the brothers."

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James Franco

The actor earned a fine arts' masters from Columbia, and can now add "artist" to his resume. In June, Franco opened his art exhibit, "The Dangerous Book Four Boys," in New York City. Franco's exhibit explores sexuality and masculinity through film, photography, drawings, and sculpture.

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Ke$ha

According to the "Your Love Is My Drug" singer, her uniqueness is one-of-a-kind: "None of it's fabricated," she told Interview magazine in April. "Like, I have a belief that if I wear my placenta in a necklace, there's a possibility of me gaining second sight--like being psychic."

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Brad Pitt

Paparazzi magnet Pitt went from being in front of the camera to behind the lens to photograph the November 2008 issue of W magazine, featuring his partner Angelina Jolie. "I love his photography," Jolie says. "He's very critical of his own work."

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Hayden Panettiere

As a spokesperson for Save the Whales Again, Panettiere travels to promote animal rights advocacy. In 2007, a warrant was issued for her arrest after she protested against whale slaughter in Japan. Panettiere's activism efforts were chronicled in the Oscar-winning 2009 documentary, The Cove.

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Jessica Alba

In 2008, Alba teamed up with Declare Yourself to encourage youth voters to register. "I really don't see the point in not registering," said Alba, who posed for print ads bound by black tape. "We sign up for...Facebook pages, and download music off the internet. The least people can do is register."

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Pete and Ashlee Simpson-Wentz

The couple posed for photos as part of the NOH8 campaign, which supported efforts to overturn the Supreme Court's decision to ban same-sex unions in Calilfornia. The Wentzes were photographed with duct tape over their mouths to symbolize pro-gay voices not being heard.