Floyd “Money” Mayweather has A LOT of dough and he decided to be generous at the Bad Boy Family Reunion concert in Las Vegas this weekend.

The retired boxing champion threw $100 bills to the crowd, just because he felt like it.

Lil Kim was performing “Get Money” when Floyd walked out onstage and began to make it rain.  A rep for the boxer told TMZ Sports, Mayweather threw roughly $9,000 in cash, which is basically pocket change to him.

Floyd’s rep says he and Kim are “very good friends,” and he just wanted to do a nice thing.

ShayAux: Twitter || Instagram