Bob Rock's son provided the child's spoken voice in Metallica's “Enter Sandman” from The Black Album. His voice appears in the bedtime-prayer passage near the song's conclusion.
That spoken section reinforces the song's theme of childhood fear. “Enter Sandman” combines familiar bedtime language with unsettling images, turning an ordinary nighttime ritual into something ominous. The contrast is one reason the track became so memorable.
Bob Rock was the album's producer, and his family connection to the recording is a detail often mentioned alongside the song's production history. Rock also encouraged Metallica to record with the members performing together, helping capture a more unified live feel.
The child voice is sometimes incorrectly attributed to one of Metallica's members or their children. The credited story instead identifies Rock's son. The detail is separate from the song's instrumental and vocal performances: James Hetfield sings the lead, Kirk Hammett plays lead guitar, Jason Newsted plays bass, and Lars Ulrich plays drums.