"Lost and Found" is the second single from Delerium's album Nuages du Monde featuring singer Jaël. She was previously featured on their single After All. "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. . A music video was also directed by Stephen Scott and released. Jaëll appears in the video.