The first annual MTK: Music To Know Festival will take place in East Hampton, NY on August 13 and 14. Vampire Weekend will headline the event on Saturday, August 13 while Bright Eyes will top the bill on Sunday, August 14. Other confirmed acts include: Matt & Kim, Cold War Kids, Chromeo, Tame Impala, Ra Ra Riot, Fitz & The Tantrums, Tom Tom Club, Dawes, M Ward, We Are Scientists, The Limousines, Naked and Famous, Francis and the Lights, Suddyn, Nicos Gun and Young Empires. Music will run from Noon until 10 PM each day. Additional acts will be confirmed in the coming weeks.