Brown Eyed Girls' Gain to sing an OST for MBC's drama 'My Spring Day'

Gain will be lending her voice for a new OST for MBC's drama 'My Spring Day'.

This will be Gain's first time singing for an OST. Many people are very excited over the news and also expecting her to participate in more OSTs in the future.

The song is called 'I Believe', is a ballad which described Kang Dong Ha(Kam Woo Sung)'s feeling towards Lee Bom Yi(Sooyoung).

'I Believe' will be released on October 8th as OST Part 4 for the drama.