Big Mountain Music Festival 15 (BMMF 15) is a two-day, two-night music festival that will be taking place in Dec 2025, at The Ocean Khao Yai in Nakhon Ratchasima, Thailand. Presented by Pepsi, this year's event marks a significant milestone as it celebrates the festival's 15th anniversary. The organiser, GMM Show, has gone all out with the theme "มัน มงคล มาก" (So auspicious/blessed) to reflect the grand celebration.
The festival's core appeal lies in its feel good DNA and its scale. It is widely considered the largest outdoor music festival in Thailand, featuring over 100 artists from diverse musical backgrounds across numerous stages. This year, the festival is expected to have around 14 stages, each with its own unique design and atmosphere, catering to a wide range of genres from mainstream pop, rock, and indie to hip-hop, electronic, and even traditional Thai Mor Lam music. The iconic Cow Stage has been rebranded as "Vua Kwak" (beckoning cow), inviting a new generation of artists and fans.
Beyond the music, BMMF 15 promises a complete festival experience with various zones dedicated to food, art, and camping. The festival's long-standing success is a testament to its creative and consistent brand identity, centered around its beloved cow mascot, Pee Wua, and its ability to adapt to new trends while maintaining a strong sense of community. This year's event is positioned not just as a music show but as a cultural phenomenon and a shared life experience, solidifying its status as a must-attend event for music lovers in Thailand.