Seventeen dropped more teasers as they continue getting ready for their upcoming 9th mini-album, 'Attacca.'

The popular boy group has been releasing various teaser photos to prepare for their comeback. All thirteen members have been displaying a more mature masculine side to their charms for this upcoming album.

On October 19 at midnight, Seventeen released the highlight medley for their 9th mini-album. The members took the mic to sing the seven tracks from the album including, "To you," "Rock with you," "Crush," "PANG!" "Imperfect love," "I can't run away," and lastly, " 2 MINUS 1," which will only be released as a digital track.

Meanwhile, Seventeen's 9th mini-album 'Attacca' is set to drop on October 22 at 12 AM EST. So check out the highlight medley above.