Instagram/Marcus Mumford & Julian C Music Experience Mumford & Sons, The Strokes, and 25+ acts at the 2026 Sea.Hear.Now Festival in Asbury Park. Rock, pop, reggae & culture Sept 19-20. March 25, 2026 AceShowbiz - The upcoming 2026 Sea.Hear.Now Festival in Asbury Park, New Jersey, will be headlined by two major acts: Mumford & Sons and The Strokes. Scheduled for September 19 and 20, the festival promises a dynamic lineup featuring a diverse range of artists alongside unique cultural events. Mumford & Sons will take the main stage on Saturday, September 19.