999 (Selena Gomez and Camilo song)

"999" is a song recorded by American singer Selena Gomez and Colombian singer Camilo. It was released through Interscope Records on August 27, 2021. The song was written by Gomez, Camilo, and Edgar Barrera and is produced by Camilo and Barrera.

Release
The song was first teased on Twitter with Gomez teasing the song tweeting "1000 yo sé que piensas en mí y el corazón se te mueve…si tú quieres ir a 1000...". Camilo quote tweeted her tweet saying "999... yo estoy en 999!", further confirming the collaboration. They tweeted a pre-save link shortly after. The song was released on August 27, 2021.

Composition
The song described as a dreamy and rhythmic-pop song with ballad at its arrangement. Where it composed in the key of C♯ Major, with a fast tempo of 150 beats per minute and runs for three minutes and 44 seconds. Lyrically, its "about the beauty of true love."

Music video
The official music video for "999" was released on the same day as the song on August 27, 2021. It was directed by Sophie Muller.

Credits and personnel
Credits adopted from Tidal.
 * Selena Gomez — vocals, lyricist, composer
 * Camilo — vocals, lyricist, composer, producer
 * Edgar Barrera — vocal, lyricist, composer, producer
 * A.C. — producer, guitar, programmer
 * Vnsa — mix engineer
 * Mick Raskin — mix engineer
 * Kat Dahlia — background vocals
 * John Hanes — engineer, mix engineer
 * Nicholas Ramirez — engineer
 * Natalia Ramirez — engineer, vocal producer
 * Bart Schoudel — engineer, vocal producer
 * Chris Gehringer — mastering engineer
 * Serban Ghenea — mixer
 * Sam Riback — production coordinator
 * Aleen Keshishian — production coordinator
 * John Janick — production coordinator
 * Nir Seroussi — production coordinator
 * Zack Morgenroth — production coordinator
 * Benjamin Tischker — production coordinator
 * Vanessa Angiuli — production coordinator