On March 17, 2026, TUNEXX shocked fans by dropping the music video titled 'Heulleonaeryeo Slay' on their official YouTube channel. The clip showcases fierce, original choreography and a powerhouse performance from members Donggyu, Sungjun, and Jeon. From start to finish, the video is packed with dazzling stage production and eye-popping visuals that make it impossible to look away, with standout moments that spotlight each member's unique charm and commanding charisma. Fans are already predicting the track will blow up and keep climbing in popularity.