Question: When was the Pearl Jam album which Brendan O'Brien never worked on released? 

Context paragraphs:
Lightning Bolt (Pearl Jam album): Lightning Bolt is the tenth studio album by the American rock band Pearl Jam.  Produced by long-time Pearl Jam collaborator Brendan O'Brien, the album was released in the United States on October 15, 2013, through the band's own Monkeywrench Records, with Republic Records handling the international release.

Vitalogy: Vitalogy is the third studio album by the American rock band Pearl Jam, released on November 22, 1994, through Epic Records.  Pearl Jam wrote and recorded "Vitalogy" while touring behind its previous album "Vs." (1993).  The music on the record was more diverse than previous releases, and consists of aggressive rock songs, ballads and other elements making this Pearl Jam's first experimental album.

Vs. (Pearl Jam album): Vs. is the second studio album by American rock band Pearl Jam, released on October 19, 1993 through Epic Records.  After a relentless touring schedule in support of their 1991 debut album "Ten", Pearl Jam headed into the studio in early 1993 facing the challenge of following up the commercial success of its debut.  The resulting album, "Vs.", featured a rawer and more aggressive sound compared with the band's previous release.  It was the band's first collaboration with producer Brendan O'Brien, and their first album with drummer Dave Abbruzzese.

Ten (Pearl Jam album): Ten is the debut studio album by American rock band Pearl Jam, released on August 27, 1991 through Epic Records.  Following the disbanding of bassist Jeff Ament and guitarist Stone Gossard's previous group Mother Love Bone, the two recruited vocalist Eddie Vedder, guitarist Mike McCready, and drummer Dave Krusen to form Pearl Jam in 1990.  Most of the songs began as instrumental jams, to which Vedder added lyrics about topics such as depression, homelessness, and abuse.

Pearl Jam (album): Pearl Jam (sometimes referred to as The Avocado Album or simply Avocado) is the eighth studio album by American alternative rock band Pearl Jam, released on May 2, 2006 on J Records.  It was the first and only release for J Records, their last album issued by Sony Music.  It was the band's first full-length studio release in almost four years, since "Riot Act" (2002).  Following their performances at the Vote For Change tour in 2004, the band commenced work on "Pearl Jam" in November 2004 at Studio X in Seattle, Washington and finished in February 2006.

Immortality (Pearl Jam song): "Immortality" is a song by the American rock band Pearl Jam, released on June 6, 1995 as the third single from the band's third studio album, "Vitalogy" (1994).  Although credited to all members of Pearl Jam, it was primarily written by vocalist Eddie Vedder.  The song peaked at number 10 on the "Billboard" Mainstream Rock Tracks chart.  The song was included on Pearl Jam's 2004 greatest hits album, "rearviewmirror (Greatest Hits 1991–2003)".

Riot Act (album): Riot Act is the seventh studio album by American rock band Pearl Jam, released on November 12, 2002 through Epic Records.  Following a full-scale tour in support of its previous album, "Binaural" (2000), Pearl Jam took a year-long break.  The band then reconvened in the beginning of 2002 and commenced work on a new album.  The music on the record featured a diverse sound, including songs influenced by folk, art rock, and experimental rock.  The lyrics deal with mortality and existentialism, with much influence from both the political climate after the September 11, 2001 terrorist attacks and the accidental death of nine fans during Pearl Jam's performance at the 2000 Roskilde Festival.

List of Pearl Jam band members: Pearl Jam is an American alternative rock band that formed in Seattle, Washington in 1990.  The original incarnation of Pearl Jam included bassist Jeff Ament, guitarists Stone Gossard and Mike McCready, vocalist Eddie Vedder, and drummer Dave Krusen.  This line-up recorded Pearl Jam's debut studio album, "Ten".  Krusen left the band in May 1991, three months before the album was released.

Save You (Pearl Jam song): "Save You" is a song by the American rock band Pearl Jam, released on February 11, 2003 as the second single from the band's seventh studio album, "Riot Act" (2002).  Although credited to all members of Pearl Jam, it features lyrics written by vocalist Eddie Vedder and music primarily written by guitarist Mike McCready.  The song peaked at number 23 on the "Billboard" Mainstream Rock Tracks chart.  The song was included on Pearl Jam's 2004 greatest hits album, "rearviewmirror (Greatest Hits 1991–2003)".

Backspacer: Backspacer is the ninth studio album by the American alternative rock band Pearl Jam, released on September 20, 2009.  The bandmembers started writing instrumental and demo tracks in 2007, and got together in 2008 to work on an album.  It was recorded from February through April 2009 with producer Brendan O'Brien, who had worked on every Pearl Jam album except their 1991 debut "Ten" and 2006's self-titled record—although this was his first production credit since 1998's "Yield".  Material was recorded in Henson Recording Studios in Los Angeles, California and O'Brien's own Southern Tracks Recording in Atlanta, Georgia.  The music on the album—the shortest of the band's career—features a sound influenced by pop and new wave.  The lyrics have a more optimistic look than the ones in the politic-infused predecessors "Riot Act" and "Pearl Jam", something frontman Eddie Vedder attributed to the election of Barack Obama.

Supporting paragraphs: Backspacer Ten (Pearl Jam album)
Answer: August 27, 1991