MUTATIONS FESTIVAL 2026 Various Venues, Brighton FRIDAY TICKETS ONLY   Brighton’s seminal Mutations Festival returns Friday 23rd and Saturday 24th October 2026 for its eighth edition, it’s most ambitious and exciting edition yet! Headlining the Friday are the undefinable, undeniable, raucous FAT DOG. Headlining the Saturday is Beastie Boys alumni MIKE D on his first ever solo tour in support of his debut solo album. Joining them on the bill will be over 90 of the most exciting international br...