Guests at SL got a special treat from Swizz Beatz Wednesday when the producer dropped by and got behind the DJ booth. We’re told he gave the crowd a listen to unreleased tracks he worked on with Beyoncé and Common. Earlier, Swizz had dinner at Catch with New York Knick Carmelo Anthony, who was celebrating being honored at the 10th Annual Hennessy Privilege Awards earlier in the night. They were joined by J.R. Smith and rapper Fabolous.