Frank Ocean sat in a chair onstage at FYF Fest, a pair of large, studio-style headphones clamped over his ears.
The enigmatic R&B star was singing — first his song “Close to You,” which he said he’d based on Stevie Wonder’s cover of the old Carpenters hit, then a bit of the Jackson 5’s “Never Can Say Goodbye” — while behind him Brad Pitt appeared in high-definition close-up on an enormous video screen. Pitt had a cellphone to his ear; his expression was sincere but inscrutable in the way movie stars are paid millions to perfect.
Yet this wasn’t some forgotten film clip Ocean had dug up to establish a vibe for his headlining set Saturday night.
Pitt was there in the...