Four demos for the album were recorded on August 13, 1990; "Enter Sandman", "The Unforgiven", "Nothing Else Matters" and "Wherever I May Roam." The lead single "Enter Sandman" was the first song to be written and the last to receive lyrics. On October 4, 1990, a demo of "Sad but True" was recorded. In October 1990, Metallica began recording at One on One Recording Studios in Los Angeles, California, to record the album, and also at Little Mountain Sound Studios in Vancouver, British Columbia for about a week. On June 2, 1991, a demo of "Holier than Thou" was recorded. Hetfield stated about the recording: "What we really wanted was a live feel. In the past, Lars and I constructed the rhythm parts without Kirk and Jason. This time I wanted to try playing as a band unit in the studio. It lightens things up and you get more of a vibe."