College hoopers looking for a place to showcase their skills this summer just got some great news ... The Game, Dom Kennedy and a host of other hip hop stars are helping to start a new basketball league in L.A.!! It'll feature both women's and men's basketball players ... and ex-NBA player Pooh Jeter, who's partnering up with Real Run founder Deanthony Langston, tells TMZ Sports he's hoping it'll change countless lives.