V.O.S' Kim Kyung Rok (31) will return as a solo artist for the first time in five years with digital single "It's Not a Big Deal" featuring Block B's P.O.!

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A rep from his agency Star Empire stated, "Kim Kyung Rok was discharged from the army back in October of last year and recently showcased his vocals again on KBS 2TV's 'Immortal Song'... The new single expresses how much he missed the stage during his two-year hiatus."

"It's Not a Big Deal" is a medium-tempo soul song created by Rhymer, Master Key, and Shin In Soo with a featuring by Block B's P.O. As the title suggests, the track expresses the feelings of a guy who tries to pretend as if everything is okay after going through a painful breakup. 

Fans who've missed Kim Kyung Rok's voice are in for a treat when "It's Not A Big Deal" drops on January 7!