Throughout almost six decades of Super Bowl history, halftime shows have typically been anodyne affairs, chances for football fans to load up their snack plates. But some have broken ground. When Ella Fitzgerald joined Carol Channing onstage at the 1972 event -- in a now-lost set honoring Louis Armstrong -- it was a watershed for Black women, jazz and celebrity bookings. The first rock 'n' roll performer didn't arrive until 1988, when Chubby Checker twisted. kAm}6H z:5D @?