The Hangar at the OC Fair & Event Center stands as a versatile indoor concert venue within the 150-acre Costa Mesa fairgrounds, renowned for its activation during the annual Orange County Fair and year-round events like Fight Club OC. Spanning 22,245 square feet with a soaring ceiling rising from 15 to 43 feet and a massive 72-foot rolling entry door, this hi-gloss concrete-floored space offers standing capacity up to 4,449 or seated arrangements for 3,177, though total event capacity reaches around 10,000 with flexible configurations. Its tiered reserved seating in sections 1-6, mezzanine levels, and general admission floor deliver intimate sightlines and an up-close vibe amid the fair's lively energy. Known for high-energy live music during the fair's summer concert series, featuring sold-out shows by artists like T-Pain, and diverse programming, The Hangar earned the top worldwide ranking for venues of 1,501-2,500 capacity in August 2025 per Pollstar. The neighborhood buzz of the OC Fair, with its agricultural exhibits and crowds exceeding 1 million visitors, infuses an electric, festive atmosphere. Unique architectural elements like the expansive ceiling and adaptable layout set it apart, transforming a multi-purpose hangar into a pulsing hub for concerts, assemblies, and action-packed spectacles.