AA (or�"Double A") has been causing a stir over the past month through the gradual introduction of their members. They also made headlines with their performance at the '2011 K-POP Super Concert' with fellow labelmate and actress, Ha Ji Won. On November 4th, the boys launched their official debut through�'Music Bank' with their title track, "Because I'm Crazy", an electro-dance song composed and produced by member Aoora. Check out their performance below!