The fight back in 2015 was one of the most hyped of all time -- even more than Mayweather vs McGregor -- and ended with Floyd besting the Pacman with a unanimous decision.
The two stars met up at a music festival in Tokyo when Mayweather proclaimed, "I'm coming back to fight Manny Pacquiao this year another 9 figure pay day on the way."
The fighters made a killing during their last bout, with Mayweather raking in $220 million and MP getting a check for $100 million.
Mayweather didn't give a timeframe for the rematch, but ESPN says it could go down as early as December. Let's get the hype train rolling!