Montero (stylized in all caps) is the debut studio album by American rapper Lil Nas X, released on September 17, 2021, by Columbia Records. Five singles supported Montero: the lead single "Montero (Call Me by Your Name)", "Sun Goes Down", "Industry Baby", "Thats What I Want", and "Lost in the Citadel". "Montero (Call Me by Your Name)" and "Industry Baby" topped the U.S. Billboard Hot 100, while "Thats What I Want" peaked within the top ten.

The album has guest appearances from Jack Harlow, Doja Cat, Elton John, Megan Thee Stallion, and Miley Cyrus, while its production was primarily helmed by frequent collaborators Take A Daytrip, as well as Ryan Tedder, Tom Levesque, Kanye West, Nick Mira and Carter Lang, among others. Musically, Montero is a pop rap record with influence from various other genres. It received critical acclaim from music critics, who praised its eclectic production and catchy songwriting. At the 64th Annual Grammy Awards, it received a nomination for Album of the Year making his second nomination in three years in the category, while "Montero (Call Me by Your Name)" was nominated for Record of the Year, Song of the Year and Best Music Video, and "Industry Baby" was nominated for Best Melodic Rap Performance, respectively. Lil Nas X also performed "Dead Right Now" during the ceremony.

Commercially, the album topped the charts in Australia, Denmark, Ireland, New Zealand, Norway, and Sweden. It peaked at number two on the US Billboard 200, also entering the top 10 in numerous other territories.