Yup, you guessed it– Tiësto will be headlining Fling on April 13th alongside woozy groovers Passion Pit. Dutch superstar DJ Tiësto has been gaining fame over the past few years as part of the growing electronic dance music trend, and is apparently the cool cat's meow. (Kids these days!) Watch this Dutchman spin records and make unsts all night long as you pass the Dutch on Fling Friday. Expect tickets to go on sale this upcoming week.