DOUBLE TAKE: The secret’s out: after months...

DOUBLE TAKE: The secret’s out: after months of disappointing negotiations with singer Diana Ross, and dead-ends with crooners Michael Crawford and Liza Minnelli, the Orange County Performing Arts Center has booked the main act for its fifth anniversary gala. . . . Song and dance man Ben Vereen (E2) will star at the Sept. 25 soiree, said his manager. Guests will pony up $5,000 to $25,000 per table for the show.