Reboot is the third and final studio album by South Korean girl group Wonder Girls. It was released on August 3, 2015, through JYP Entertainment. The Wonder Girls were more involved in the composition of this album, with each member having writing and/or production credits on at least one song; each song has credits for at least one member. It was their first studio album since 2007 to feature member Sunmi and their first since the departure of members Sunye and Sohee. The album musically conveys a 1980s-inspired style, incorporating genres including synthpop, hip hop, pop rock and dance-pop. (Wikipedia)