Mark Kozelek (born January 24, 1967) is an American singer, songwriter, guitarist and record producer. He is best known as the vocalist and primary songwriter of both Sun Kil Moon and Red House Painters.

Kozelek was born and raised in Massillon, Ohio. Upon relocating to Atlanta, Georgia, he met drummer Anthony Koutsos. After the pair moved once again to San Francisco, California, Red House Painters formed with the addition of guitarist Gorden Mack and bassist Jerry Vessel. From 1992 to 1996, Red House Painters released a series of acclaimed albums, showcasing Kozelek's intense, highly autobiographical songs.

However, Kozelek's parting with the record label 4AD, followed by a major label merger which left Red House Painters' 1998 album Old Ramon on the shelf, proved highly frustrating and stifled the group's momentum. Kozelek opted to occupy himself with a series of idiosyncratic solo recordings as Red House Painters dissolved.

In 2000, he released the solo EP Rock 'n' Roll Singer, which featured three original songs as well as covers of John Denver's "Around and Around" and three AC/DC songs ("Rock 'n' Roll Singer," "Bad Boy Boogie," and "You Ain't Got a Hold on Me"). Two of the AC/DC cover versions on Rock 'n' Roll Singer were radical re-arrangements of the originals which removed the Bon Scott-penned lyrics from their hard rock context and placed them into gentle, acoustic "folk ballad" settings.

Kozelek expanded on this idea in 2001, releasing a full-length album composed solely of AC/DC covers titled What's Next to the Moon. These new arrangements sounded so unlike the originals that a KCRW radio executive insisted that the title track was a Leonard Cohen song.

This was not the first time Kozelek had drastically re-arranged others' material to his own ends. With Red House Painters, he had previously done similar reconstructions with Simon & Garfunkel's "I Am a Rock," The Cars' "All Mixed Up," Kiss's "Shock Me," Yes's "Long Distance Runaround," Paul McCartney's "Silly Love Songs," and Francis Scott Key's "The Star-Spangled Banner."

In the years between his band projects, Kozelek's music made a number of appearances on compilations and tribute albums. He contributed the song "New Partner" to the Will Oldham (a.k.a. Bonnie 'Prince' Billy) tribute album, I Am Cold Rock. I Am Dull Grass. Around this time, Kozelek commandeered a tribute album to John Denver entitled Take Me Home: A Tribute to John Denver, featuring Will Oldham, The Innocence Mission and Low to name a few. The compilation also featured Kozelek covering "Around and Around" as a duet with Rachel Goswell.

A limited edition live recording, White Christmas Live, was released by the Sub Pop label in late 2001. In addition to his solo material, it featured several Red House Painters songs done in a stripped-down, acoustic guitar-and-vocals style, and one a cappella rendition. An early version of his current project Sun Kil Moon's "Lily and Parrots" is tacked onto the end as an uncredited bonus track. It also features one previously unreleased song, "Admiral Fell Promises".