4minute's HyunA and B2ST's Jang Hyunseung (a.k.a. 'Trouble Maker') stirred the coals a few days back with their hot introductory performance at the '2011 Mnet Asian Music Awards'. Now they're ready to bring the heat with their official music video for "Trouble Maker"! As hinted in their earlier teasers, "Trouble Maker"�is a MV that plays on the cat-and-mouse theme. Set in a lavish hotel room, the video is rife with gunplay and sexual tension -- a combination that's sure to make them a huge hit from the get-go. Check out their MV below!