Direct marketing moguls J.R. and Loren Ridinger will host 175 family and friends — plus guests including Marc Anthony, Fat Joe and Mary J. Blige — in Puerto Rico this weekend for their daughter Amber’s lavish wedding. The bride is marrying actor/singer Duane McLaughlin at the Ritz-Carlton Dorado Beach tomorrow evening in a fete organized by celebrity planner Preston Bailey. We hear that hip-hop soul singer Blige will croon during the reception and DJ Cassidy will then spin tunes. Guests Fat Joe, Maxwell and Swizz Beatz are expected to provide further entertainment. Also attending the tropical affair will be Khloe Kardashian, La La Anthony, Scottie and Larsa Pippen and Shakira collaborator Alejandro Sanz. Amber will walk down the aisle in a wedding dress by J’Aton Couture, plus diamonds by Jacob the Jeweler. The party started yesterday when guests began arriving for the weekend extravaganza.