The fifth annual outdoor Grateful Fest on the Great Lawn next to the Vanderbilt Mansion is an afternoon for grooving to the sounds of these Grateful Dead tribute bands: Half Step, The Electrix, Reckoning and Unbroken Chain. Concert-goers bring beach chairs, blankets and picnic lunches.

The rain-or-shine event is presented by producer-musician Rich Rivkin. Food will be available for purchase. Parking is free.