S2O Music Festival, known as “the world’s wettest party,” electrifies Bangkok every April ) coinciding with the traditional Songkran New Year). Held at Rajamangala National Stadium, the festival spans three days, showcasing global headliners such as Marshmello, Alan Walker, DJ Snake, Diplo, and Major Lazer, alongside mind‑blowing 360‑degree water effects, lighting, pyrotechnics, and a massive sound system.