K-pop girl group Hearts2Hearts (members: Jiu, Carmen, Yuha, Stella, Jueun, Aina, Ian, Yeon) has launched a full-scale follow-up activity with '15-LOVE' from their mini album 'Lemon Tang' released in June, about two months later. Kakao Entertainment's global K-pop media 1theK (1theK) unveiled a performance video for '15-LOVE' through their original content series 'On the Spot.' The song cleverly expresses the tension and excitement felt during a tennis match, and the performance faithfully implements the tennis concept against the backdrop of a gymnasium with court lines drawn. The members created a dynamic atmosphere through movements mimicking throwing and catching a ball, dynamic steps, and formed a seamless display with synchronized choreography and pair dances that fully utilized the spacious venue. Sporty track pants paired with neon colors and dot patterns added cheerful energy to the performance. This activity follows their successful Japanese debut with the single 'ICONIC HEART' announced on the 12th, and holds special significance as a thank-you to fans for their love and support.