Rockers Slash of Velvet Revolver and Guns n' Roses and Dave Navarro of Jane's Addiction and the Red Hot Chili Peppers have joined the NOH8 Campaign against Proposition 8, California's gay marriage ban.

Slash and Navarro posed with their mouths duct taped. The campaign's familiar “NOH8” slogan is written on Navarro's cheek and on a top hat worn by Slash. The 45-year-old guitarist Slash, also known as Saul Hudson, is pictured in a white shirt holding a guitar, while Navarro is shirtless and displaying a variety of tattoos.

The campaign, which raises funds and awareness to defeat Proposition 8, is helmed by photographer-activist Adam Bouska and his partner Jeff Parshley.

On a stop in Houston, the campaign recruited twenty-six-year-old Houston Dynamo Mike Chabala to pose for the campaign.

Other famous faces involved in the NOH8 Campaign include: Isiah Thomas, men's basketball coach of the Florida International University Golden Panthers, and his son, Joshua Zeke Thomas, actress Tori Spelling and Cindy McCain, wife of Arizona Senator John McCain, and their daughter Meghan, a pro-gay Republican.