SEVENTEEN have released a “highlight medley” for their upcoming mini-album, ‘Attacca’.The video sees members of the group take the mic to perform short snippets of all seven songs from the forthcoming project, including the digital-only track ‘2 Minus 1’ by members Vernon and Joshua.Each song gets its own mini-music video to accompany the previews, with the viewers taken through chemistry labs, neon warehouses and lush gardens as part of the group’s performance.Due out October 22, ‘Attacca’ will