Sun Kil Moon is the project of singer-songwriter Mark Kozelek, best known for his previous band, Red House Painters. Sun Kil Moon sees Kozelek undertake the writing, composing, singing and guitar playing accompanied by Tim Mooney and Anthony Koutsos on drums, and Geoff Stanfield on bass.

The band is named after Korean bantamweight boxer Moon Sung-Kil. .

Band's debut album, Ghosts of the Great Highway, first released in 2003 by Jetset Records, is also concentrated on true-life stories of deceased boxers, such as featherweight champion Salvador Sanchez, flyweight Pancho Villa, and also Duk Koo Kim. The album, traditionally for Kozelek, contains the cover, this time "Somewhere" originally written by Leonard Bernstein.

Ghosts of the Great Highway was re-issued as a double CD on February 6, 2007 on Kozelek's own label, Caldo Verde. The second disc features six bonus tracks.

The band's follow-up Tiny Cities was released on November 1, 2005 on Kozelek's Caldo Verde Records. The album covers eleven songs by the indie/alternative group Modest Mouse.

Sun Kil Moon's third studio album is called April and will be released April 1, 2008. It features guest vocals from Will Oldham and Ben Gibbard.

Sun Kil Moon is the current project of singer-songwriter Mark Kozelek , best known for his previous band, Red House Painters . Sun Kil Moon sees Kozelek undertake all the writing, composing, singing and guitar playing accompanied by Tim Mooney and Anthony Koutsos (also an ex-member of RHP) on drums, and Geoff Stanfield on bass. The band is named after korean bantamweight boxer Moon Sung-Kil. Their debut album, Ghosts of the Great Highway , was written entirely by Kozelek, and released by Jetset