50 Cent's Son -- I'M TEAM MAYWEATHER NOW

This one's gotta hurt ... 50 Cent's estranged son Marquise has a new father figure in his life -- and it happens to be his biological dad's worst enemy. Marquise posted a photo to his Facebook page .... hangin' with FLOYD MAYWEATHER!!Unless…

Kelly Carlson Kelly Clarkson Kelly Hu Kelly Monaco