"Rearviewmirror" (Greatest Hits 1991–2003) is a two-disc compilation album by the American rock band Pearl Jam, released on November 16, 2004, through Epic Records. The album has been certified platinum by the RIAA in the United States and was reissued in 2013 under the title The Essential Pearl Jam.
The album debuted at number 16 on the Billboard 200 chart, selling 96,000 copies in its first week of release. Rearviewmirror (Greatest Hits 1991–2003) has since been certified platinum by the RIAA. The compilation was designed to showcase different sides of the band's catalogue: the first disc, known as the "Up Side", contains heavier rock songs, while the second disc, or "Down Side", is made up of slower songs and ballads. Both discs are arranged in chronological order, with the exception of the last song on the "Down Side", "Yellow Ledbetter", which is a regular show closer. The album includes remixes of "Once", "Alive", and "Black", all remixed by Brendan O'Brien. Although Pearl Jam's cover of Victoria Williams' song "Crazy Mary" was initially intended to be included on disc two, it was replaced by "Man of the Hour" prior to release. This compilation marked the end of Pearl Jam's contractual agreement with Epic Records.
Rearviewmirror (Greatest Hits 1991–2003) received positive reviews from critics. Stephen Thomas Erlewine of AllMusic gave the album four and a half out of five stars, praising it for capturing the band's rise to popularity while also showcasing their strong material even as they faded from the mainstream spotlight. He appreciated that the album avoided the typical trap of overemphasizing later albums to appear more balanced. Christian Hoard of Rolling Stone awarded the album four out of five stars, noting that it served as a great introduction for casual fans, featuring both hit songs and live staples. He remarked on the "Up Side" disc's ability to sum up Pearl Jam's evolving sound with effects pedals and cathartic rock, while the "Down Side" disc was highlighted for its big choruses and sincere emotional tone. The compilation remains a comprehensive representation of Pearl Jam's journey from their breakout in the early 1990s to their continued evolution in the 2000s.
