Blonde Bonanza

RONALD Perelman is back with blond psychiatrist Anna Chapman, but there's another blonde on the scene. The Revlon billionaire had lunch Tuesday at Fred's with Elisabeth Roehm , who played the hot prosecutor in "Law & Order" a few seasons back and dated MSNBC's Dan Abrams. As much as Perelman enjoyed lunch, he is said to be very happily spending the holidays on his yacht in St. Barts with the brainy Chapman.