50 Cent Finally Buries Hatchet With Mayweather & Says 'He's My Brother'

Seems the 50 Cent vs. Floyd Mayweather feud is finally OVER, with the two superstars coming together last night .... months after they TRASHED each other in public.  Don't forget  these two HATED each other after a bitter falling out with 50 publicly saying Floyd was so dumb, he couldn't read. Mayweather called 50 irrelevant.

But last night in Vegas, the two didn't just hang out -- they took a photo together ... and 50 posted it to Instagram with the caption, "THE original MONEY TEAM, you gotta love it. My brother ready,may 2 don't get scared now."

So, beef squashed?!