DUH-#WINNING MIX? Indaba Music is sponsoring a Charlie Sheen Remix contest, having posted some of the actor’s recent bon mots online for contestants to do their stuff, like "We win so radically in our underwear before our first cup of coffee, it's scary." All entries must be received March 13 by 10 p.m. (ET). Fans will be allowed to vote on their favorite, with the leaders posted, until April 4. The entrant designated "Most Winner" will receive a Yeti Microphone from Blue, the same one used by Sheen, the "Bi-Winner" himself, on his recent UStream broadcast. To play, go here. (3/11p)