Bad Bunny leads a cast of musicians and dancers for the first Super Bowl halftime set performed nearly entirely in Spanish, in Santa Clara, Calif., Feb. 8, 2026. A copyright suit against stars including Bad Bunny and Daddy Yankee came from the producers behind a trio of songs foundational to the reggaeton genre. (Doug Mills/The New York Times) By BEN SISARIO The most closely watched lawsuit in music, which has ensnared Bad Bunny, Justin Bieber, Daddy Yankee, Karol G and dozens of other…