Girls' Generation member Jessica will be singing the "Heart Road" OST for the drama, "The Great King's Dream."

Jessica has just recently completed recording for the drama's main title song, "Heart Road." The fist episode will air on this saturday, September 8.

This is a first for her to sing an OST for a historical drama.

This song was also created by the same producer of member Taeyeon's solo song, "If."

Many hope that Jessica's song will be just as popular as Taeyeon's song.

The "Heart Road" OST will be released online on September 7.