Lost Americana is the seventh studio album by American musician, singer, and songwriter MGK. It was released on August 8, 2025, through EST 19XX and Interscope Records, as the follow-up to his previous album, Mainstream Sellout (2022). The album was preceded by three singles: "Cliché", "Vampire Diaries", and "Miss Sunshine".

The album's official trailer, released shortly after, was narrated by Bob Dylan—a surprising collaboration that generated widespread media attention due to Dylan's elusive public persona. This prompted Vice to speculate whether Dylan might be experiencing dementia and could soon opt for assisted suicide. The narration comes soon after revealing he was a fan of MGK's music. While speculation initially surrounded whether the voice was authentic or AI-generated, multiple sources confirmed Dylan's genuine involvement, noting his social media promotion of the trailer. The album was recorded with long-time collaborators Nick Long, Stephen Basil and Brandon Allen.

The album's lead single, "Cliché", was released on May 23, 2025. The album's second single, "Vampire Diaries", was released on July 11, 2025, accompanied by a music video filmed at the Natural History Museum of Los Angeles County. The third single, "Miss Sunshine", was released on July 25, 2025, accompanied by a music video.

The album includes influences from rock, pop, punk rock, and rap genres. The opening "Outlaw Overture" is divided into two parts: the first-half opens with '80s new wave synth lines and transitions into acoustic guitar balladry. "Starman" interpolates the chorus from "Semi-Charmed Life" by Third Eye Blind. The frontman for the band, Stephan Jenkins, invited MGK over to his house in Malibu, but because of the Palisades Fire earlier that year, the National Guard was restricting visitors to the neighborhood. MGK told the National Guard member that he was a "big rockstar" going to another rockstar's house to get a sample cleared for his new album, and the guard member let him through.

Lost Americana explores themes of family, friendship, and addiction, and serves as a metaphor for MGK's life. The lyrics contain numerous references to MGK's family life. "Indigo" features lyrics about balancing family and work, with MGK singing, "Put my newborn daughter to bed at eight / Then I'm back on the interstate." The track "Treading Water" features the lyrics "I broke this home / But I'll change for our daughter so she's not alone" and reference MGK's most recent trip to rehab. In "Orpheus", MGK compares himself to the character from Greek mythology who travels to the Underworld to fight for his lost wife, but loses himself in the process, seemingly referencing his relationship with Megan Fox, who co-wrote the song. On "Tell Me What's Up", MGK sings about his friends who died before the age of 30.

"Sweet Coraline" was written based on an interaction MGK had while in New York City. MGK was outside smoking a cigarette when he was approached by a foreign fan. She was standing in the road, and a taxi almost hit her. MGK pulled her out of the street. The fan then told him that she and her friends had been sitting in the cafe across the street, debating if it was MGK outside. The fan asked MGK if she could ask him a question, and when he agreed, she asked, "How did you fumble Megan Fox?" MGK responded "Goddamn." MGK later told his friend and producer, Travis Barker, about the moment. Barker encouraged MGK to turn the moment into a song. The song was named after the 2009 film, Coraline.

In "Orpheus", the final track on the album, MGK compares himself to the Greek mythological character who travels to the Underworld to fight for his lost wife, Eurydice. Ultimaely, Orpheus loses himself in the process. The song was co-written with MGK's partner, Megan Fox.

Lost Americana received generally mixed reviews from music critics. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream critics, the album received an average score of 56, which indicates "mixed or average reviews", based on 5 reviews.