In 1993, while Harmony was pursuing his high school education in New York City he met his first love Chloë Sevigny. They met each other for the first time at the Washington Square Park. Chloë Sevigny is an actress. They had romantic affairs for several years and they broke up at the end of 1990s.
In 2007, Harmony got married to Rachel Korine. Rachel Korine is also an actress and she is famous for her role in the movies like Septien, Mister Lonely and Trash Humpers. As a loving husband and wife, they have a daughter named Lefty Korine. His nationality is American and he is of white ethnicity.
Harmony began his interest in movies and acting at a young age after his father encouraged him to watch them. After his high school graduation, he joined Tisch School of the Arts at New York University where he majored in Dramatic Writing. He studied there for one semester. Before he began his production and directorial career, he was a professional skater. After he met photographer Larry Clark, he was inspired to write a story about skating. In 1995, he wrote an American teen comedy-drama film Kids. He also starred in this movie. Two years later, he wrote and directed an American art film Gummo. He is also renowned for being a writer and director of an American crime drama film Spring Breakers. His net worth is $3 million.