BTOB's Sungjae is not only starring in tvN drama '9th Boy', he's also singing for its OST too with the song "Curious"!
SEE ALSO: BTOB share their day in 'Please Stay' MV
The song was actually heard over the past weekend's episodes as the theme song between Sungjae and Chorong's characters. The tune is actually a sweet duet that seems to go along perfectly with the chemistry of the two characters as the lyrics come alive through Sungjae and the female singer Oh Seung Hee's voices.
Check it out through the OST MV above!
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