Stunts on Rich Qataris He's Suing

'Stay Out of American Sports'

Ice Cube Stunts on Rich Qataris He's Suing for $1B, 'Stay Out of American Sports'

Ice Cube's got a message for the Qatari investors he's suing for over $1 BILLION ... after they allegedly went back on their agreement with the BIG3.

"We gon’ win. Stay out of American sports if you don’t wanna do the right thing," Cube said on his way into Power 106 in L.A. to promote VH1 Hip Hop Squares, which premieres Wednesday night.

TMZ Sports broke the story -- Cube and his BIG3 partner, Jeff Kwatinetz, are suing a bunch of Qatari investors who were supposed to invest $5 mil in Cube's pro hoops league.

In fact, they recently added the CEO of Qatar Airways to the list of…