A cheery song for back to school

I've been back at work for a couple for weeks now and the dreaded sindrome post vacacional so common in Spain as we tend to get THE WHOLE MONTH OF AUGUST OFF seems to be lifting a little :-) Although I left school more years ago than I care to remember, September for me is still when the 'real year' begins rather than January, and is a good opportunity to sneakily start working on those dreaded New Year's resolutions and get a little head start. Anyway, thought I'd share my cheery mood with this song I like from Florence and the Machine. And yes indeed, for now at least, it would seem like the dog days are over.