The only act confirmed before today's announcement was Bon Iver.
Flow Festival has today confirmed a fresh bunch of names joining them in Finland's capital this summer, including Stormzy, FKA Twigs, Bikini Kill, Koffee, Mac DeMarco, Michael Kiwanuka, Chromatics, Mabel, Gettomasa, as well as Henrik! and Teksti-TV 666.
New acts announced! @stormzy, @FKAtwigs, @michaelkiwanuka, Mac DeMarco, @theebikinikill, @chromatics, @originalkoffee, @Mabel, Gettomasa and Life Aid 2020 will perform at #flowfestival2020. 3-day Early Bird tickets are still available at https://t.co/3m4HSTzLpc pic.twitter.com/P4BSEzxnVY
— Flow Festival (@flowfestival) January 16, 2020