Can you cite an authoritative source that says the Super Bowl acts are picked by some other than the NFL?
http://www.prnewswire.com/news-releases/the-nfl-and-cbs-look-to-mtv-to-produce-the-aol-super-bowl-xxxviii-halftime-show-73262057.html
Really, get over it. The network picks the acts. Have for decades.