"X", also "X (Equis)" listed as is a song by American singer Nicky Jam and Colombian singer J Balvin. Written by the two singers, Juan Diego Medina, Giordano Ashruf and its producers, Jeon and Afro Bros, it was released by Sony Music Latin on March 2, 2018. It is a Spanish dancehall song, featuring a synth trumpet hook and elements of reggae, reggaeton, Latin pop and Afrobeats. A Spanglish version of the song was released on April 27, 2018. On June 28, 2018, a remix version featuring vocals by artists Maluma and Ozuna was released. The accompanying audio was also released on Nicky Jam's YouTube channel on the same day. The song topped the charts in Spain, Italy, Portugal, Bolivia, El Salvador, Panama, Paraguay and Peru. Nicky Jam performed the song solo during the 2018 FIFA World Cup closing ceremony.