Celebrity socialite and model Paris Hilton has posed for the NOH8 Campaign.

The 29-year-old Hilton is best known for starring alongside childhood best friend Nicole Richie in the Fox reality series The Simple Life.

The NOH8 Campaign, which is helmed by photographer-activist Adam Bouska and his partner Jeff Parshley, raises funds and awareness to defeat Proposition 8, California's 2008 voter-approved gay marriage ban.

Celebrities and everyday folks are photographed with their mouths duct taped and the campaign's familiar “NOH8” slogan often written on one cheek.

Hilton pops out from a circular black frame she's holding while wearing a revealing white top in her photograph.

The campaign received a huge boost last month when NCIS star Pauley Perrette wore a strapless dress that featured the NOH8 Campaign's logo to the People's Choice Awards.

Other celebrities involved in the NOH8 Campaign include actress Tori Spelling and her family, Adam Lambert's bass guitarist Tommy Joe Ratliff, and Isiah Thomas, men's basketball coach of the Florida International University Golden Panthers, and his son, Joshua Zeke Thomas.

Eighteen-year-old Hayley Hasselhoff, who is the daughter of actor David Hasselhoff and Pamela Bach who plays Amber in the ABC Family original series Huge, posed topless for the campaign late last year.