HAIM performed "Want You Back" in the BBC Radio 1 Live Lounge as part of their promotional efforts for their second studio album, "Something to Tell You," which was released in July 2017. The song, which is characterized by its catchy melodies and emotional lyrics, reflects the band's blend of indie pop and rock influences. At this time in their career, HAIM was still riding high from the success of their debut album, "Days Are Gone," released in 2013, and they had established themselves as a prominent force in the music scene. The performance showcased their tight harmonies and musicianship, while also highlighting their growth as artists. Notably, "Want You Back" incorporates themes of longing and vulnerability, which are prevalent throughout the album. The band's energetic live presence in this recording further solidified their reputation, cultivating a strong connection with their audience.