Olivia Munn's first nude photo shoot isn't gratuitous in the least.

The 31-year-old actress, who next appears in this summer's Magic Mike, bares all in a new anti-fur billboard in L.A.

NEWS: 25 Things You Don't Know About Olivia Munn

Munn is just one of many stars to participate in PETA's "I'd Rather Go Naked Than Wear Fur" campaign: Khloe Kardashian, Taraji P. Henson and Elisabetta Canalis have all stripped down for the cause.

PHOTOS: Stars and their pets

Munn also filmed a video exposing the Chinese fur industry, which is currently the world's top exporter of animal pelts.

"As a proud person of Chinese descent, it broke my heart to learn just how terribly animals suffer and die on Chinese fur farms and that there are no penalties for this abuse," Munn says.

"When you think about even that little tiny trim of fur on your gloves or on your collar, that is still coming from an animal that had to endure so much pain just for you," she adds. "There's nothing good about pretending like you don't know."

PHOTOS: Celebrity animal charities

Previous supporters of the PETA campaign include Charlize Theron, Eva Mendes, Lea Michele, Pink and Christina Applegate.

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