Red Velvet made their first broadcast debut of their new song 'Surfin' Boy' on Mnet's M Countdown on August 6th. The group showcased their signature bright and refreshing energy on stage, perfect for beating the summer heat. The episode also featured various artists including Picheorin (Seventeen's Dino's sub-character), BABYMONSTER, Dayoung X Jay Park, A2O MAY, and Xiaoting performing their new song debuts, while KISS OF LIFE made a comeback stage with their new track 'SWEAT'. The program aired live at 6 PM and was composed of an impressive lineup of artists for summer viewers.