Billlie's Haram is singing the main theme for the upcoming movie 'The Moon'.

On July 25, reports revealed Haram will be the voice behind the main theme for 'The Moon'. In addition to singing the theme song, she'll be attending the VIP photo wall event for the movie today at the Atrium Square in Yeongdeungpo, Seoul.

'The Moon' is about the struggle between astronaut Sunwoo (played by EXO's D.O.), who is stranded on the moon after an accident, and the former head of the space center Jaeguk (Sol Kyung Kyu), who's desperately trying to save him.

Haram has previously sang OSTs for 'Still With You' and 'Remember the Days', and she recently appeared on MBC's 'King of Masked Singer'.