Matchbox 20 released their debut album, "Yourself or Someone Like You", in 1996. While their first single, "Long Day", was a radio success in the west coast, the album soon spawned several Top 40 singles throughout 1997 and 1998, including "Push", "3 A.M.", "Real World", and "Back 2 Good". "Push" and "3 A.M." did not chart on the "Billboard" Hot 100 chart due to the rule in effect prior to 1998 that required a song to be released as a single in order to appear on the Hot 100. "Real World" and "Back 2 Good" proved to be the band's first entries into the "Billboard" Hot 100, after the rule was terminated. The album eventually shipped more than 12 million copies in the U.S. alone, achieving a diamond certification. In 1998, Matchbox 20 recorded a live version of their single, "3 A.M." for release on the charity album "Live in the X Lounge", benefiting United Cerebral Palsy research.