It finally happened ... after months of trying to link up, Lil Wayne got to meet LSU hoops star Flau'jae Johnson -- and now, TMZ Sports has learned the two are getting to work on a rap collab!!
The "A Milli" spitter and the Tigers guard got to see each other face-to-face for the first time in New Orleans on Sunday ... after Weezy's surprise performance at the ESSENCE Festival.
The two shared a big hug backstage ... and then they posed for a couple pics. They got to exchange some quick words too -- before Wayne had to get to his other obligations.