Ivan Neville’s solo piano sets in the luxurious Atrium room on Jam Cruise have come to be a highly anticipated staple of the sea-bound fest. With just about every influential funk artist on the lineup, fans aboard the boat are constantly treated to once in a lifetime sit-ins and collaborations, but there’s something particularly special about the Dumpstaphunk piano man’s deeply soulful playing and singing that nearly brings everyone to tears.