It looks like everybody went to the Floyd Mayweather vs Shane Mosley boxing match last evening. The event, which was held at MGM Grand in Las Vegas, brought out the biggest names in music and entertainment including the world’s best-selling female artist, Mariah Carey, her husband Nick Cannon, and producer Swizz Beatz. Beatz last collaborated with Carey on her ‘E=MC²’ album on the track ‘O.O.C.’. Could another musical union between the two be in the works?