Did You Know That There's a Tunnel Under Ocean Blvd is the ninth studio album by American singer-songwriter Lana Del Rey, released on March 24, 2023, by Interscope and Polydor Records. The album features production by Del Rey, Mike Hermosa, Jack Antonoff, Drew Erickson, Zach Dawes, and Benji and includes collaborations with Jon Batiste, Bleachers, Father John Misty, Tommy Genesis, SYML and Riopy. Upon release, Did You Know That There's a Tunnel Under Ocean Blvd received acclaim from music critics some of whom called it Del Rey's magnum opus. Critics praised the mature and evolved material and Del Rey's songwriting style. Three singles preceded the release of the album: the title track was released as the lead single on December 7, 2022, while "A&W" was released as the album's second on February 14, 2023. The release of "The Grants" followed one month later on March 14, 2023.