Montero (stylized in all caps) is the debut studio album by American rapper and singer Lil Nas X, released on September 17, 2021, by Columbia Records. The album, titled after the first name of Lil Nas X, was first announced in 2019. Its title, cover artwork, and tracklist were unveiled in 2021. Four singles supported Montero: the lead single "Montero (Call Me by Your Name)", "Sun Goes Down", "Industry Baby", and "Thats What I Want", two of which topped the U.S. Billboard Hot 100.
The album features guest appearances from Jack Harlow, Doja Cat, Elton John, Megan Thee Stallion, and Miley Cyrus. 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. Commercially, the album topped the charts in Australia, Denmark, Ireland, New Zealand, Norway, and Sweden, and entered the top 10 in other territories.