Steadily but surely, ballad quartet�2AM is being recognized for their talents and climbing up the ladder to success. Most recently, they gained a lot of love and support through their comeback song�Can't Let Go, Even If I Die. With the exception of�What Do I Do, which was a short-lived promotional song in itself, 2AM has fallen under a single category of musical genre, releasing one ballad track after another. However,�I Did Wrong (????)�reveals a different sound from the talented foursome as their retain their vocal prowess in a more upbeat and catchy song. Seulong is the first member to unveil his solo teaser. http://www.youtube.com/watch?v=Lh3XcDpbNks Check out an unofficial teaser from 2AM's Mnet reality program 2AM Day. http://www.youtube.com/watch?v=eoMCQBsQKQg