M3 Rock Festival 2026: Ultimate Guide for Rock Fans

M3 Rock Festival 2026 returns May 2 to Merriweather Post Pavilion in Columbia, Maryland with Tom Keifer, Queensrÿche, Buckcherry, Faster Pussycat and more. Here’s your ultimate guide to M3 Rock Fest — lineup details, tickets, travel tips, nearby hotels, and everything rock fans need to plan the perfect one-day arena rock experience.