Twenty One Pilots and Teddy Swims headlined the third day of Electric Castle 2026, both making their first-ever appearances in Romania, as the festival's main stage drew its biggest crowds of the weekend so far. The Transylvanian event, staged in the grounds of Bánffy Castle, continued its run of high-profile bookings following earlier sets from Sleaford Mods and Kneecap, cementing its reputation as a major stop on the summer festival circuit.

Teddy Swims performed with a full band, opening with extended drum and guitar solos before moving through tracks including "Funeral" and new single "Break Up In Reverse", a cover of Van Halen's "Jump", and closing with "I Lose Control", which has amassed five billion streams since 2024. Elsewhere on site, DJ Quantic drew dancers to the festival's Beach stage for a two-hour set blending salsa, house and electronic influences drawn from his years spent in Colombia, while further sets from MOCHAKK and others kept the festival's round-the-clock dancing going.