MC Hammer -- CAN'T TOUCH US ... Rages with NBA Champs!

My my my my ...

MC Hammer had one helluva night ... not only did he fly into Cleveland on a sick private jet, but the proud Oaklandian partied with the Golden State Warriors moments after they won the NBA championship!

For the record, Hammer is one of the team's BIGGEST fans ... he's basically Golden State's Jack Nicholson.

So, when the team clinched last night, Hammer was right there with Steph Curry, Draymond Green and the rest of the crew to celebrate the team's first title in 40 years.

Haven't seen Hammer this excited since that "Pumps and a Bump" video ...

Congrats!