Freak Valley Festival returns to Netphen, Germany from June 4-6, 2026, showcasing a diverse lineup of metal, rock, psych, punk, and stoner acts from around the globe. The festival features headliners including Atlanta metal veterans Kylesa, Swedish stoner rock favorites Truckfighters, and Ukrainian heavy rockers Stoned Jesus, alongside The Neptune Power Federation, Coltaine, and four additional acts. With artists representing the United States, Sweden, Ukraine, and Norway, this three-day event offers an international celebration of heavy music genres for fans seeking both established names and emerging talent in the stoner and psych rock scenes.