D.O. of EXO and Jo Jung Seok sing together the final song of "Brother"

The final song of "Brother" - "Don't Worry, My Dear" will be released on December 24 .

"I thought that there would be more synergy if sing the last song together." Because Jo Jung Seok is a great singer, I always thought it would be good for us to sing together", said D.O.

Jo Jung Seok also commented: " I think it was a real duo and I really sang it as our Du Young and Du Sik characters " Words cannot describe how good that was the experience".

Meanwhile, D.O. and Jo Jung Seok , "Brother", film will be premiered on November 23 .