The top seven finalists of "Queendom Puzzle" are aiming to show a never-before-seen girl group chemistry as El7z Up. A total of 26 participans competed in the Mnet girl group reboot program over the past four months for seven spots on the project group El7z Up, to be launched next month. One member each from seven different already existing or inactive groups compose the team: H1Key's Hwiseo, WJSN'...