In the spring, Grammy Award-winning quartet Béla Fleck and The Flecktones released their newest album, Rocket Science, featuring the band’s trademark jazz, bluegrass, African and electric blues style. Now, the group is embarking on a nationwide tour as part of the Dave Matthews Band Caravan, stopping at Governor’s Island in New York on Aug. 28. Their performance is bound to be eventful, with the group’s eccentric fusion of sounds, inventive instrumentals. Other performers include Dave Matthews Band and The Roots. The festival beings at 11 a.m. Tickets are $85.