Pete Wentz and Ashlee Simpson-Wentz take part in NOH8

Pete Wentz and Ashlee Simpson-Wentz are keeping their mouths shut for gay marriage.

The couple are the latest celebs to take part in NOH8, a campaign supporting efforts to overturn Proposition 8.

They were shot by photographer Adam Bouska on Monday with the campaign's signature look: "NOH8" painted on their cheeks and duct tape over their mouths as a symbol of the pro-gay voices not being heard.

i think proposition 8 is pretty lame- as many others do too. its f*cking lame.”

— Pete Wentz

Pete Wentz says voters were deceived into voting for Proposition 8, the ballot initiative seeking to overturn California's legalization of gay marriage.

"Many people were intimidated on this issue due to the scary misleading communications on the other side," Wentz said in a statement. "I believe that this is, and has always been, a civil rights issue. We should not allow inequality like this in America."

In my country, in my family, I think that I believe that a marriage should be between a man and a woman.”

— Carrie Prejean, sticks by her controversial reply.