VIDEO : Drake Roasts Meek Mill, Brings Out Kanye, Pharrell at OVO Festival Set

Drake escalated his ongoing beef with Meek Mill Monday night, closing out Toronto's OVO Fest with a performance highlighted by guests -- including Kanye West, Pharrell Williams, Future and Travi$ Scott -- and memes making fun of his rap rival.
The battle began, though, even before the show, as Drake showed up to his OVO rehearsal wearing a "Free Meek Mill" T-shirt.