"L'Instant X" (English: "The X Moment") is a 1995 song recorded by the French artist Mylène Farmer. It was the second single from her fourth album Anamorphosée and was released on 12 December 1995. Directed by Marcus Nispel in New York, the music video depicts with humour the apocalypse and shows Farmer bathing in the foam. The song became the biggest hit from the album, reaching number six in France, with a long chart trajectory. In January 2004, the song was the subject of a remix produced by One-T and was released as promotional single.