The K-pop superstars' 9th EP, 'Attacca,' features the group's first song entirely in English, '2 MINUS 1.'
SEVENTEEN is performing a medley of their biggest hits -- just for ET!
SEVENTEEN performs a medley of their biggest hits, including 'Very Nice,' 'CLAP,' 'Don't Wanna Cry,' 'Snap Shoot' and 'Left & Right.'