They reformed with vocalist Michael Crafter to play a farewell tour in mid-2008 and released a live album and DVD, Sleepless Nights and City Lights, which peaked at #48 in Australia.

[3] Peters, Weinhofen and bass guitarist Leaton Rose had previously been members of the local band Cur.

[4] Originally named The Rubik's Equation, then briefly Child Left Burning, the band's first performance was at the Reynella Youth Enterprise Centre in late 2001.

[4] The following year, Crafter joined to share lead vocals and soon after Rose replaced Engel on bass guitar.

In late 2001 and early 2002, the group recorded the four-track Choose to Love, Live or Die EP, which was produced by Paul Degasperi and the band; with additional guitar supplied by Cain Kapetanakis.

[5][6] O'Gorman left after the release to join Day of Contempt and he was replaced by guitarist Kevin Cameron in late 2002.

In August 2005, I Killed the Prom Queen flew to Sweden to record their follow-up album, Music for the Recently Deceased.

Music for the Recently Deceased was produced by Fredrik Nordström,[11] whose other credits included Dimmu Borgir, Darkest Hour, At the Gates and In Flames,[12] and by Patrik J Sten.

[14][15] The Australian tour in support of the album had over 50 concert dates in three months, from north Western Australia to the southern states and then along the east coast to Cairns.

[16] The Sydney show brought 3,500 patrons to Luna Park, where I Killed the Prom Queen also played at the annual Come Together Music Festival.

Jona was offered the opportunity to join Bleeding Through and we didn't want to continue the band without him, so we decided to call it a day."

[20] Tyrone Ross from Mourning Tide subsequently filled in as the vocalist for I Killed the Prom Queen for a Japanese tour.

Colin Jeffs of Bendigo band Heavenslost and Aversions Crown then provided vocals on a European tour with Bleeding Through, All Shall Perish and Caliban.

In April 2007, I Killed the Prom Queen announced their breakup, citing both an inability to find a permanent vocalist and Weinhofen's decision to join Bleeding Through.

A live album and DVD, Sleepless Nights and City Lights, was recorded at their Adelaide performance; it was released on 22 November 2008 and peaked in the top 50.

Peters formed and fronted hardcore project Deez Nuts and was one half of the hip-hop duo Grips & Tonic, alongside New Zealand rapper Louie Knuxx.

In March 2011 I Killed the Prom Queen announced their reunion and an upcoming Australian tour in May with The Amity Affliction, Deez Nuts, and Of Mice & Men.

In January 2013, Weinhofen departed Bring Me The Horizon, and shortly after his departure he confirmed that Prom Queen would become a full-time band.

In late July 2013 Sean Kennedy announced on his Instagram account that he was no longer a member of the band and would not be featured on the third album.

Ben Coyte (ex-Day Of Contempt, Carpathian and current In Trenches vocalist) replaced Kennedy on bass and played his first show with the band at Resurrection Fest 2013.

[29][30] In August 2017, in an Instagram comment to Weinhofen about the status of I Killed The Prom Queen, he said that playing guitar in a band isn't at the top of his priority list right now.

[32] Crafter apologised for the comment and fans launched a petition to have the band re-added to the line-up, although Unify did not reverse the decision.

[32] On February 26, 2021, the band shared a Facebook post from Weinhofen that announced the death of former bassist Sean Kennedy.