Furthering PETA's bold tradition of racy, message-sending ads, a very nude Olivia Munn is imploring people to "boycott the circus."

"When you look at something like the circus, everyone's laughing and there's color and music and everything seems so great," Munn tells PETA. "But when you go right behind that door and the elephants are in these crates all day long and then they're getting shocked and beat just so they can get up and dance around on a ball... it was just so sickening. I was brought to tears."