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.