The Open Door is the second studio album by American rock band Evanescence, released on September 25, 2006, by Wind-up Records. Amy Lee had full creative control of the record, incorporating new elements into their previous musical styles, including her classical influences, homemade sounds, industrial rock, symphonic metal, progressive rock, electronica and the use of choirs on several songs. The album was written in the course of 18 months, and the recording process was delayed as a result of guitarist Terry Balsamo's stroke. Most of the songs were co-composed by Lee and Balsamo, with production handled by Dave Fortman.

Evanescence is an American rock band founded in 1994 by singer and keyboardist Amy Lee and guitarist Ben Moody in Little Rock, Arkansas. After releasing independent EPs as a duo in the late '90s and a demo CD, Evanescence released their debut studio album, Fallen, on Wind-up Records in 2003. Propelled by the success of hit singles like "Bring Me to Life" and "My Immortal", Fallen sold more than four million copies in the US by January 2004, garnering Evanescence two Grammy Awards out of six nominations. The band released their first live album and concert DVD, Anywhere but Home, in 2004, which sold over one million copies worldwide.