Rap mogul Jay-Z has sparked rumours he's planning to wed longtime girlfriend Beyonce Knowles after shedding pounds on a strict new diet. Sexy Beyonce reportedly suggested her burly boyfriend shed a few pounds after pointing out he was 30 pounds (13.6 kilograms) lighter when they started dating in 2003. And the driven 36-year-old has taken the former DESTINY'S CHILD star's comments to heart - he has already shed 15 pounds (6.8 kilograms), according to insiders. A source tells American publication In Touch, "Jay-Z was never fat, but he was getting chunky. Beyonce likes a little meat on his bones, but not too much." According to the source, Jay-Z's biggest challenge was turning his back on his love for candy.