Son By Four delivers a poignant Spanish-language ballad titled 'Cuando Seas Mia,' characterized by its emotive vocal delivery and atmospheric production. The track exemplifies the artist's signature style, blending romantic themes with a polished sonic texture that resonates within the contemporary Latin pop genre. While specific album placement details remain unconfirmed, the song stands as a testament to the group's ability to craft intimate, heartfelt recordings that prioritize lyrical sincerity over complex arrangements. Its inclusion in their discography highlights their consistent focus on exploring the nuances of love and longing through their signature sound, appealing to audiences seeking authentic emotional expression in modern Spanish music.