While I am not sure that I would even consider Hannah Montana a super hero, the points made here are quite interesting.  The major aspect that io9 is looking at is the Super-hero identity, the secret identity, that Hannah / Miley needs to preserve to keep her sanity….

Pop culture has gone superhero-crazy, but almost all superheroes date from the middle of the last century. Where’s the new, fresh costumed adventurer who speaks to the ringtone generation? How about Hannah Montana, the Disney Channel’s superstar?

Read more at Hannah Montana is the first real 21st century superhero.