From which Metallica album does the song, used by Niels de Ruiter as walk-on music, come?
Enter Sandman "Enter Sandman" is a song by American heavy metal band Metallica. It was released as the first single from their eponymous fifth album, "Metallica" in 1991. The music was written by Kirk Hammett, James Hetfield and Lars Ulrich. Vocalist and rhythm guitarist Hetfield wrote the lyrics, which deal with the concept of a child's nightmares.
Crawling (song) "Crawling" is a song by American rock band Linkin Park. It is the second single from their debut album "Hybrid Theory" and is the fifth track on the album. It was released in 2001 as their second single and won a Grammy for Best Hard Rock Performance in 2002. In January 2011, "Crawling" was released in a Linkin Park DLC pack for "Rock Band 3".