Wooohaaa! Busta Rhymes and Eminem gotcha all in check with their new rap collabo "Calm Down." With some sampling from the House of Pain's "Jump Around" (those horns doe!), Bussabus unleashes his speedy rhymes while Slim Shady shakes the mic. Rock out to the Scoop DeVille-produced track, which will appear on Busta's forthcoming album, E.L.E. 2, below. You can also forward $1.29 to iTunes for the single here.