LIL PEEP; PART ONE was Lil Peep's first major project, created in his bedroom in Long Island, New York. It marks a significant moment in Peep's career as it laid the foundation for his unique blend of emo, punk, and hip-hop. The project features raw, emotionally charged lyrics paired with haunting melodies, reflecting Peep's struggles with mental health, heartbreak, and substance abuse.

The project features some of his most popular songs, including 'Praying to the Sky' and 'The Way I See Things.' It also includes unique samples from artists such as Thirty Seconds to Mars, Flyleaf, Lil B, and the theme song of Fullmetal Alchemist.