Super Junior's Ryeowook, INFINITE's Sung-kyu join "Immortal Song 2"

Super Junior's Ryeowook (left) and INFINITE's Sung-kyu (right) [SM Entertainment/Woollim Entertainment]

Super Junior's Ryeowook and INFINITE's Sung-kyu have joined the cast of a singing competition program on KBS.

According to an official from KBS, Ryeowook and Sung-kyu will sing their renditions of legendary Korean singers' songs on KBS' "Immortal Song 2," as songstress Ali, Brown Eyed Soul's Sung-hoon and rock group No Brain left the stage as regulars.

"The two idol singers were selected to join the original cast. They will begin shooting their first episode on June 4, while the show will air in two parts on June 16 and 23," the official explained.

As Ryeowook and Sung-kyu are set to join the highly competitive audition of some of top-tier singers here, the two will be presenting modern remakes of old songs sang by popular artists, along with the remaining cast -- Im Tae-kyung, Hong Kyung-min and Ailee.

Ryeowook, who debuted as a member of a boy band Super Junior in 2008, became well known with his group's hit songs “Sorry Sorry” and “BONAMANA.”

Also, he has been active as a member of Super Junior’s two sub-units: Super Junior K.R.Y., the ballad group, and Super Junior-M, which was formed to target their Chinese fans.

He proved his vocal skills by participating in a number of soundtracks of TV series and playing in the musical "Temptation of Wolves."

Sung-kyu is the leader of seven-member boy band INFINITE who made their debut in 2010, known for the group's hit songs "Come Back Again," "Before the Dawn (BTD)," "She's Back," "Nothing's Over," "Be Mine" and “Paradise.”

The group recently made their comeback to the local music scene with the third mini-album “INFINITIZE."

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