Group TVXQ has revealed to have sung an OST for a new Japan medical drama that will air in January.

This new medical series called, "Team Batista 4," will begin on January 7 and TVXQ will be singing the theme song for it.

Many local media have shown great interest in this as they are a popular K-Pop group in Japan.

One media reported, "TVXQ will be singing the theme song for this drama and we believe it will play a big role for this drama."

TVXQ has been known to have sell out concerts and bring in over 850,000 fans and are sure that this new theme song will be very successful.

On the other hand, their Nissan Stadium DVD has topped the Japan Oricon DVD charts.