Hong Kong’s biggest outdoor music festival returns to the Victoria Harbour waterfront December 4-6, 2026, with Hayley Williams and keshi co-headlining a bill that also includes Queens of the Stone Age, Slowdive, The Jesus and Mary Chain, and Seoul’s own HYUKOH. Clockenflap has run, in one form or another, since 2008 — surviving a cancelled 2019, 2020, and 2021, and a venue that’s moved more times than most festivals survive. This year it’s back where it belongs: the Central Harbourfront Event Space, with the city’s skyline as the backdrop.