"Can't Let Go" is a song written by American singer-songwriter Randy Weeks, made famous by Lucinda Williams in 1998–1999. Williams released "Can't Let Go" as a single from her album Car Wheels on a Gravel Road, and the song entered the Billboard Adult Alternative Airplay chart in December 1998, peaking at number 14 in March 1999, staying on the chart for 13 weeks. Williams earned a Grammy nomination for the song in the category Best Female Rock Vocal Performance. Weeks released his own version of the song in 2000, on his album Madeline.

Lucinda Gayl Williams[a] is an American singer-songwriter and a solo guitarist. She recorded her first two albums, Ramblin' on My Mind (1979) and Happy Woman Blues (1980), in a traditional country and blues style that received critical praise but little public or radio attention. In 1988, she released her third album, Lucinda Williams, to widespread critical acclaim. Regarded as "an Americana classic", the album also features "Passionate Kisses", a song later recorded by Mary Chapin Carpenter for her 1992 album Come On Come On, which garnered Williams her first Grammy Award for Best Country Song in 1994. Known for working slowly, Williams released her fourth album, Sweet Old World, four years later in 1992. Sweet Old World was met with further critical acclaim, and was voted the 11th best album of 1992 in The Village Voice's Pazz & Jop, an annual poll of prominent music critics. Robert Christgau, the poll's creator, ranked it 6th on his own year-end list, later writing that the album, as well as Lucinda Williams, were "gorgeous, flawless, brilliant".