NFL Draft's Trae Waynes -- Did He Celebrate With Lil Jon ... Yeeeahhhhh!!!!

Hours after Trae Waynes was taken as the 11th overall pick in the NFL Draft ... the newest member of the Minnesota Vikings partied from the windowwwwwww to the wall -- with Lil Jon!!

The former Michigan State cornerback hit up Studio Paris in Chicago for a post-draft party ... where he rocked the purple and gold to celebrate the fact that he just became a friggin' MILLIONAIRE!