"XO" is a song by American singer Beyoncé from her fifth studio album, Beyoncé (2013). Columbia Records released the song as the lead contemporary hit radio single from the album in the US and Italy on December 16, 2013. Ryan Tedder co-wrote and co-produced "XO" with Terius "The-Dream" Nash and Beyoncé, with additional production handled by Chauncey "Hit-Boy" Hollis and HazeBanga Music. A pure midtempo pop love song, "XO" is complete with electronic musical instrumentation, synthesizers and drums. Musically, it was compared to Beyoncé's own song "Halo" and was noted for having several music hooks including its call and response chorus.