A Life Once Lost was an American metalcore band formed in 1999 in a suburb of Philadelphia, Pennsylvania. After releases on Robotic Empire and Deathwish Inc., A Life Once Lost released their successful (citation needed) album, Hunter on Ferret Music in 2005. The group supported the release by touring with groups such as Throwdown, Zao, As I Lay Dying, Lamb of God, Clutch, Opeth, Strapping Young Lad, and took Part in the Ozzfest 2006.
September 2007 saw the release of their latest album, Iron Gag, featuring musical guests Devin Townsend of Strapping Young Lad, Anthony Green of Circa Survive, and Randy Blythe of Lamb of God. The band supported the album with tours alongside High on Fire, The Dillinger Escape Plan, Saviours, Suicide Silence, and Job for a Cowboy.
The band toured Europe twice in 2008 alongside Himsa and War From a Harlots Mouth, respectively. In 2008, the band headed to Scandinavia as well as performing two shows in Russia. In April 2009 the band took a break from writing a new album and headed to Alaska for 3 dates. In May 2009, the band embarked on the "You've Got Mail" Tour with Thy Will Be Done as direct support.
In March 2012, the band announced that they will enter the studio with producer Andreas Magnusson (The Black Dahlia Murder, Impending Doom) in April–May 2012 to record a new album.
On July 31, 2012, the band announced "Ecstatic Trance" as the title of their upcoming fifth studio album. It was released on October 23, 2012. The band toured throughout the fall of 2012 to support the album as an opener for Revocation, along with Canadian band KEN mode.
The band announced their breakup on July 12, 2013.