"Hey DJ" is a song by American-Latin boy band CNCO. Two versions of the song were released: a solo pop version, and a reggaeton version with additional vocals by Puerto Rican singer Yandel. The first one was released on April 4, 2017, with the second one being released two days later, on April 6, through Sony Music Latin. The version with Yandel was released as the lead single of their eponymous second studio album, CNCO.
The boy band performed "Hey DJ" with Yandel for the first time on television at the Billboard Latin Music Awards of 2017, where they took home three awards, including Best New Artist.
A remix of "Hey DJ" by CNCO, American singer-songwriter Meghan Trainor and Jamaican artist Sean Paul was released on November 9, 2018, by Sony Music Latin.
The music video was released on November 16, 2018. It features the band arriving in suits to a party in a mansion. They are seen celebrating and interacting with other guests. The artists also perform on a small stage outside the house.