With Tom Petty and the Heartbreakers headlining Super Bowl XLII's halftime show, we couldn't help but wonder which other acts would deserve the chance to play to one of the year's biggest crowds. Of course, then we also got to wondering about what rare duets the event could motivate, especially after such great team-ups as Aerosmith and Britney Spears and Janet Jackson and Justin Timberlake (which, OK, ended poorly). Here's... More >>>