Instagram/Sabrina Carpenter & Slayy Music Coachella 2026's opening day: scorching sun, epic debuts, a canceled midnight show, and unforgettable late-night alternatives. April 13, 2026 AceShowbiz - The opening day of Coachella 2026 kicked off with a bang, delivering a lineup full of eagerly awaited performances. Fans enjoyed a mix of festival debuts from emerging artists, welcome returns from long-established acts, and a headlining debut by a performer who had foreshadowed her top billing during a previous Coachella set two years ago.