Five songs were released as official singles from Metallica's 1991 album Metallica.
The singles were “Enter Sandman,” “The Unforgiven,” “Nothing Else Matters,” “Wherever I May Roam,” and “Sad but True.” Together, they gave the album an unusually strong sequence of radio and music-video releases and helped carry the record far beyond the band's established thrash-metal audience.
“Enter Sandman” was the lead single, released before the album. “The Unforgiven” followed, while “Nothing Else Matters” became a major power-ballad hit. “Wherever I May Roam” and “Sad but True” extended the album's campaign with contrasting examples of its heavy and atmospheric styles.
“Don't Tread on Me” is a frequent source of confusion. It was sent to rock radio after the album's release, but it was not issued as a commercial single. Counting it would produce six, which is why a question about official singles requires distinguishing promotional radio activity from a formal single release.