Pamela Anderson really knows how to celebrate art. The sultry star was at the opening party for David LaChapelle‘s new photography exhibition at the David DeSanctis gallery in LA, where one attendee told us, “She was with a guy who plays a character in Cirque du Soleil. They were in the outdoor bathroom trailer together for almost an hour. It was a really crowded party but everyone was whispering about it.” We’re not sure what was going on in there. A rep for Pam didn’t return calls.