SEVENTEEN's unit V8, consisting of D.Eight and Vernon, made their debut stage on Mnet's M Countdown on the 2nd, unveiling 'singasong' and 'rat race' for the first time. The performance was built around a retro-sci-fi concept, with D.Eight and Vernon demonstrating choreography alongside dancer crews, featuring a soufflé dance as the signature move. The 'rat race' stage showcased contrasting visuals expressing the song's narrative through cube structures and group formations. The debut mini-album 'V8', produced by Mechatok, KIRARA, and Dylan Brady, recorded 500,000 cumulative sales within 3 days of release and charted on international platforms including China's QQ Music. The title track 'singasong' ranked 3rd on Instagram's trending audio chart through a shuffle dance challenge. V8 is set to appear on KBS2's Music Bank and MBC's Show! Music Core, with planned solo concerts in Goyang on July 11-12 and in Hong Kong from July 17-19.