Mark Tuan of K-pop boyband GOT7 has unveiled details about his upcoming solo release.Earlier today (October 22), the Taiwanese-American singer uploaded a cryptic teaser image for his forthcoming solo single titled ‘Last Breath’. “11.12 #LastBreath,” Tuan wrote in the accompanying caption, revealing that the track is set to drop on November 12.The teaser image shows a man, presumably Tuan, fully-clothed and submerged in a bathtub.