 15&'s second single "Somebody" was released on April 7, 2013.The music video showed the two parodying the "K-Pop Star" judge panel while reacting to staged auditions/cameos by Park Jin-young and some of Park Ji-min's fellow contestants from K-pop Star 1.On April 7, 2013, 15& made their comeback performance on K-pop Star 2 finale with "Somebody".