Some of the best vocalists of the South Korean music industry will go head-to-head on "Immortal Song 2."  

"On December 15th singers such as Baek Ji Young, Ailee, Sea, and Moon Myung Jin will be joining the cast members in a rival battle for 'Immortal Song 2,'" read an official network statement.

Many of the top vocalists will be battling it out to see who is the top singer, and the lineup includes Baek Ji Young, Ali, Jung Dong Ha, Ailee, Rose Motel, Cho Jang Hyuk, JK Kim Dong Wook, V.O.S., Moon Myung Jin, Sea, Kim Bada, and SISTAR's Hyolyn.

If there's one thing all of these guest stars have in common, it's that these stars have been on the show since the show's debut. Besides the singers that are currently starring on the show, Ailee, Sea, Hyolyn, Jung Dong Ha, Rose Inn, and Moon Myung Jin will be making a welcome return to the show after a long hiatus.

Also, this will be Baek Ji Young's first time starring on "Immortal Song," and there's much anticipation as to what kind of stage she will bring to the table.

Since this broadcast will feature an all-star cast in this rival edition, the flow will differ from the usual format. They will be reinterpreting songs from the 1960s to the 1990s of rivals Nam Jin and Ha Hoon Ah. If before they took turns sequentially, this time singers will go one versus one. The best score will have the honor of being called the winner.

This episode is scheduled to air in early January of next year.