Un x100to

After Bad Bunny called himself a "big fan" of regional Mexican music, the song marks only the second time the artist tapped into the genre, following the remix of "Soy el Diablo" by Natanael Cano.^[4] In an interview with Zane Lowe, he expressed his love for the band and explained how important it is for the world to be exposed to other Latin music genres besides "reggaeton and perreo and urban music".^[5] The artist posted a TikTok of him dancing to the song on April 16, 2023, his first appearance on the app in four months.^[6]

The group noted that they had no idea Benito would be featured in the song until the day of the video shoot.^[7]

Produced by Latin "hitmaker" Edgar Barrer and Puerto Rican-Dominican producer Mag Borrero, the song features a fusion of "captivating percussion" and Grupo Frontera's signature "accordion melody". The collaboration sees Barrer putting his "romantic cumbia-norteño spin" on the Grupo Frontera sound.^[1] The chorus is sung by Payo Solís of the band and Bad Bunny.^[6] It tells the story of a person missing their former partner, calling them with just one percent of battery left on the phone and sending messages that keep them awake.^[8]

The song features a similar chord progression to the 1995 Tejano classic "Desvelado" by fellow Edinburg, Texas regional Mexican artist Bobby Pulido. Shortly after the song's release, Pulido interpolated the chorus from "Un x100to" into his own performance of "Desvelado" at a festival in Monterrey, Nuevo León.^[9]

Ingrid Fajardo of Billboard referred to the song as a "new heartbreak anthem".^[8]

An accompanying music video was released on April 17, 2023, directed by Abelardo Baez and filmed in a Nevada ghost town.^[11] The visuals are set on a ranch.^[12] Bad Bunny stands out among the group with a light-blue outfit, while Grupo Frontera wears Cowboy-style clothing.^[13]

• List of Billboard Hot Latin Songs and Latin Airplay number ones of 2023