Ideas for school musical!?!?

Depending on what youre costume budget is I think Cats would be a good idea. It has a huge cast list (min 25+ but Ive seen cast lists off 70 cats) with a lot off "leading" parts and many parts off both genders (even thou many parts could be switched between the genders with ease.) The downside is that its require some dancing skills and quite many that got both good voices and dancing skills (since basicly every cat dance, more and less.) And Cats is preatty much "idea free" musical thats good for everyone regardless what theyre religion is. And besides what kid (and me) dont want to be a Jellicle cat? Johan.