A leading group opposed to California's gay marriage ban, Proposition 8, is making its first stop in Iowa.

The NOH8 Campaign will hold a photo shoot on Saturday, June 4th in downtown Des Moines.

The campaign was founded by photographer Adam Bouska and his partner Jeff Parshley. The couple photographs celebrities and everyday folks with their mouths duct taped and “NOH8” often written on one cheek.

The Iowa stop carries the risk of touching off a protest from social conservatives angry over the unanimous 2009 Iowa Supreme Court decision that legalized gay marriage in the state. Last year, they banded together to oust three of the court's seven justices over their decision.

In an effort to court the state's large bloc of evangelical voters, presidential hopefuls campaigning for the GOP nomination in the early caucus state have escalated their opposition to gay rights, creating an increasingly hostile political environment for such issues.

The NOH8 Campaign received a huge boost in January when NCIS star Pauley Perrette wore a strapless dress that featured the group's logo to the People's Choice Awards in Los Angeles.