On November 25 , the unit started revealing teaser photos for the album , revealing a private-party concept . The duo also gave a teaser performance at the 2011 Mnet Asian Music Awards , which included an on-stage kiss . The duo 's first mini-album and single , both eponymously titled " Trouble Maker " , were released on December 1 , 2011
2011 Mnet Asian Music Awards
2011 Mnet Asian Music Awards
Trouble Maker (duo)