10 memorable moments from Super Bowl halftime shows

The Super Bowl halftime show used to be a time when viewers around the world would reload their nacho/wing plates and make their pit stops, hopefully not simultaneously. Now, though, the halftime show has established itself as must-watch; more people watched last year's show with Madonna than watched the actual game. To keep the world's attention, you've got to bring some serious game. Here are the 10 most impressive moments from a half-century of halftime shows. Hold onto your wardrobes. – By Jay Busbee