[2] "Universo" was written by Blas Cantó, Dan Hammond, Ashley Hicklin, Dangelo Ortega, and Mikołaj Trybulec [pl], and produced by Hammond and Trybulec; the latter also co-wrote and produced "Friend of a Friend" who represented the Czech Republic in Eurovision 2019.

[1] On 5 October 2019, Radiotelevisión Española (RTVE) announced that they had internally selected singer Blas Cantó as their performer for the 65th edition of the Eurovision Song Contest.

The promotion of the song was focused in Spain, including a performance on the fourth gala of series 11 of Operación Triunfo on 10 February.

[4] On 18 March 2020, RTVE confirmed that Cantó would remain as their representative for the following contest and, according the Eurovision rules, they would select a new song.

[5] The official video of "Universo", directed by Cristian Velasco, was filmed in Tenerife and Lanzarote in the Canary Islands, and was released on 30 January 2020.