Posted February 6, 200718 yr http://img.metro.co.uk/i/pix/2007/02/schoolgirls_450x300.jpg Girls Aloud have gone back to school for Red Nose Day. The band were joined by fellow pupil Russell Brand and Stephen Fry as their cane-wielding headmaster. The celebrities got into their school ties and blazers for new Walkers crisps adverts for Red Nose Day. They are promoting oversized ears with Gary Lineker, famous for his big ones, to raise money for the March 16 campaign. The TV adverts also feature TV presenter Fearne Cotton and comic Harry Hill.