Skrillex, Four Tet, Faithless, Madness, Kneecap, Scissor Sisters, Scooter, Shaggy, Ashnikko and Eve are among the major names heading to the Hampshire festival. Boomtown 2025 (Image: Scott M Salt)As well as its musical offering, Boomtown will host The Observatory, a women-led live science research facility. The festival runs from August 12 to August 16, with the official opening on Friday August 14. Boomtown 2026 is Chapter Five: Radical Redesign, a sold-out five-day immersive music and arts festival at Matterley Estate in the South Downs National Park, near Winchester. It runs Wednesday, August 12 to Sunday, August 16, with campers required to leave by midday on Monday, August 17.