"Luther" is a song by the American rapper Kendrick Lamar and the American singer-songwriter SZA. Titled after the American R&B and soul singer Luther Vandross, the track contains a sample of Vandross and Cheryl Lynn's 1982 rendition of "If This World Were Mine", originally performed by Marvin Gaye and Tammi Terrell. "Luther" was released as the third single from Lamar's sixth studio album, GNX, on November 29, 2024, through PGLang and Interscope Records.