JOO will be working with E-TRIBE again for her upcoming comeback.

Woollim Entertainment announced through their SNS on October 23rd,"[#JOO] It's been 5 years! Together with E-Tribe, JOO is coming back soon with high expectations!".

E-TRIBE was the one who produced JOO's 'Bad Guy' in 2011, which was well-loved back then. Their reunion after 5 years sure has attracted a lot of attention.

The agency said,"JOO will greet the fans with a ballad that emphasize on her emotional voice. With her comeback is coming near, JOO is putting in a lot of effort and it will be her first album in 5 years. Please give her a lot of your support and interest".