On December 24, M.I.B's Kangnam teased his solo song as a Christmas event.
Kangnam revealed a jacket image on his official SNS, and wrote, "It's Christmas Eve. My song will be released the day after tomorrow. I'm nervous. What do I do."
In the photo revealed, Kangnam is strolling down the streets of New York.
"What Do I Do" is Kangnam's first solo song and it's a ballad that talks about the sorrow of breakup.
Meanwhile, "What Do I Do" will be released on December 26.