According to Sports DongA, actor Kang Ha Neul will be taking part in the OST for SBS weekend drama, 'Angel Eyes,' by singing the theme for the main characters.  Within the drama, he played the younger version of the male lead, Dong Joo, showing that he might not be appearing as often anymore, but his voice will be heard for many more episodes to come.

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Multiple broadcasting reps said, "Despite Kang Ha Neul's busy schedule, he decided to take part in the OST because of his incomparable affection towards 'Angel Eyes.'  The recording will take place on April 23."

Although this will not be his first time lending his voice for the OST, this will be his first time having an exclusive OST as he previously sang with other people.  Make sure you keep your ears open for his soothing voice in 'Angel Eyes'!