Leftover Crack is a ska-core band that emerged following the breakup of the ska punk band Choking Victim around the year 2000. The band is currently signed to both Fat Wreck Chords and Alternative Tentacles, they consist of Stza (vocals), Ezra Kire (guitar, vocals), Brad Logan (guitar), Alec Baillie (bass guitar), and Ara Babajian (drums).They are typically associated with Crack Rock Steady, Morning Glory, and INDK.

Leftover Crack, combined with Choking Victim, Morning Glory and INDK, share a total of seven members between them. These seven musicians are collectively referred to as the "Crack Rock Steady Seven" (CRS7). The line-up of Leftover Crack changes fairly often, drawing on members of other New York City punk bands such as The Stockyard Stoics and The X-Possibles. Stza, Ezra, Brad, and Alec are currently the band's only completely permanent members.

Leftover Crack spans several different music genres including crust punk, ska, gangsta rap, hardcore, and death metal. Leftover Crack writes music that is anti-sexist, anti-homophobic, anti-religion, anti-racist, anti-police, anti-breeding, and anti-government.

Leftover Crack combines elements of ska, hardcore, crust punk, and death metal/metal. Leftover Crack's song Gay Rude Boys Unite, which seems to borrow some stylistic elements from Operation Ivy, accused the ska scene of being homophobic[citation needed], and called for the inclusion of all minorities in the struggle for social equality.

Leftover Crack has been banned from performing in many venues in New York City, such as ABC No Rio, the Knitting Factory, and North 6th. However, they still play at banned venues under different guises or individually as solo acts.

The band took an indefinite hiatus after the death of drummer Brandon Possible at the end of 2004. Stza spent the interim playing Leftover Crack and Choking Victims songs by himself at a few solo acoustic shows. Leftover Crack began touring again in the summer of 2005, including some dates with Citizen Fish and The World/Inferno Friendship Society, as well as playing dates in October 2005 in California after the Wasted Fest was canceled. The so-called Crack Rock Steady 7 also embarked on a small European tour in November; however, this incarnation consisted of only Stza and The Infested, in some cases billed as the "Crack Steady Rockers".