The Who will be performing at halftime of Super Bowl XLIV this Sunday. Or, more accurately, Roger Daltrey and Pete Townshend, with some other people, will be performing at halftime, -- considering bassist John Entwistle died in 2002 and drummer Keith Moon died in 1978. (If Paul McCartney and Ringo Starr were the halftime act, would they be billed as "The Beatles"?) The Super Bowl halftime show has gone through quite a few transformations (thanks, Janet Jackson) since its debut in 1967 -- a debut that featured the star power of ... the University of Arizona and Grambling marching bands. In 2007, the halftime performer was one of the most popular recording artists of all time, Prince; in 1971 the halftime performer was the Southeast Missouri State band. Southeast Missouri State! So, as the halftime shows continue to get bigger and bigger, we decided to take a look back at some of the more memorable performances.