BoA revealed a photo of herself hard at work during rehearsal.

On October 9th, the singer tweeted, “From the way it looks, the road to the ‘Infinity Challenge Music Festival’ isn’t going to be easy”, and shared a photo from the dance studio.

In the attached photo, BoA is sitting on the floor of the dance studio, wearing comfortable clothes and seemingly deep in thought about the upcoming festival.

Meanwhile, BoA will be participating in ‘Infinity Challenge Music Festival’ along with Big Bang’s G-Dragon and Yoo Hee Yeol.