The queen of OSTs will be singing for the new drama, 'Book of the House of Gu'!

She'll be singing "Spring Day", the love theme song for Lee Seung Gi and Suzy's characters. It will be a traditional ballad that emphasizes�Baek Ji Young's voice with the acoustic melody line and the heartfelt lyrics.

According to the drama's production team, Baek Ji Young decided to lend her efforts for the show because she'd known PD Shin Woo Chul from 'Secret Garden', which she also sang the OST for. The song will be released on the 22nd!