TORONTO -- The next edition of Drake's reliably star-studded Toronto summer music festival has drawn in a reformed Outkast.

The reunited Atlanta hitmakers will headline the first day of the fifth annual OVO Fest, to be held Aug. 3 and 4.

Drake himself will headline the second night.

The remaining lineups have yet to be announced, but tickets go on sale Feb. 21.

Still, each year the roster of unannounced guests tends to outshine the headlining names known in advance.

Last year, unscheduled stars who performed included Kanye West, Lil Wayne, Ma$e, Diddy, members of TLC, Big Sean, the Weeknd and A$AP Rocky.