Drake Shares Stage with Eminem in Detroit

Drake put the final kibosh on those bogus rumors Eminem was planning to drop a diss track on him ... by ripping the mic WITH Slim Shady.

Drizzy performed Tuesday night at Detroit's Joe Louis Arena -- and brought out the hometown hero to perform their 2009 anthem, "Forever."

And for the ultimate respect -- Drake even bowed and dropped heavy praise on Em.

Diss right here ... is all class.