Lyrically, it is about the band telling their ex-lovers that they will get over them, with Maite and Alfonso stating in the pre-chorus: "Pronto desde mis cenizas, me veras volar", (Eng.

Due to the band being too busy filming RBD: La Familia, promoting both albums (Celestial and Rebels) and touring around the world, plans to release "Bésame sin miedo" were postponed.

Therefore, "Celestial" was released in Mexico in March 2007 and in the rest of Latin America the song was sent to radio at the end of April.

The song's Portuguese version is also titled "Celestial", and was released as the second single from the album's Brazilian edition in the country.

On February 11, 2007, RBD recorded the music video for "Celestial" nearby the Popocatépetl and Iztaccíhuatl volcanos in Mexico City.