The NFL could certainly find some big groups from the 90s who could bring a bit more energy than the guys from the 60s. But when I try to think of big time rock stars who are new to the scene in the last decade or so that could pull off a Super Bowl, I have real trouble. Maybe I'm just starting to get old myself.
The best I could come up with was the White Stripes. I think they would be somewhat recognizable by a lot of people. But their following is nowhere near that of the acts that have done Super Bowls.