"Lost and Found" is the second single from Delerium's album Nuages du Monde featuring singer Jaël.

"Lost and Found" was released only as a promotional single in 2007, but reached number four on the Hot Dance Club Play chart as of the week ending August 25, 2007.

Remixes were made by DJ Dan, Blank & Jones, Jaded Alliance and Niels van Gogh vs. Eniac.

A music video was also directed by Stephen Scott and released.

Jaëll appears in the video.