Pamela Anderson is officially single again! The Baywatch babe had her marriage to her third husband, Rick Salomon, annulled Monday citing fraud. The couple had a bumpy road since tying the knot in Vegas on October 6, 2007. Pam filed for divorce in December, then withdrew her claim. In February she filed for an annulment and last week Rick filed his own annulment request. Neither has explained why the fraud allegation is being made.