Attendees for the week-long Fyre Festival paid from $1,200 to $100,000 and expected luxury accommodations and gourmet meals along with the concert lineup, the suit said
They ended up in tents and were served cheese sandwiches in a "get-rich quick scam," the lawsuit said.
At least six New Jersey residents were among the thousands of people left stranded in the Bahamas.
Ja Rule and McFarland knew the event would be a disaster ahead of time and the pair warned celebrities who helped promote the event not to show up and told acts to back out, the lawsuit said.
The festival's lack of adequate food, water, shelter, and medical care created a "dangerous and panicked situation" among attendees, the suit said.
The problems were exacerbated because the festival was designed to be a cashless event in which attendees were issued wristbands, the suit said. That left many without money to pay for a taxi or a bus.
One man collapsed as he was among a group locked in a room waiting to be airlifted off the island, the lawsuit said.