In classic 50 fashion -- part bully, part comedian -- he called out his former friend Floyd Mayweather, saying that he'd donate $750,000 to any charity of the boxing champ's choice. The catch? Floyd has to read one page in any "Harry Potter" book.
Needless to say, these two have had a bit of a falling out in recent years.
"Floyd will you except my ALS/ESL CHALLENGE," Fif wrote in the caption for the video. "I will donate $750k to a charity of your choice, If you can read a full page out of a Harry Potter book out loud without starting and stopping or f--king up. lmao"
On the music side of things, G-Unit released the music video for their "Come Up" late Wednesday night. You can watch the Eif Rivera-directed clip below.