Bauble-tastic! Katy Perry looks fit for the christmas tree as she rehearses in a tiny silver tutu

By JODY THOMPSON Ice queen: Katy Perry was wearing her sparkly silver Christmas fairy dress as she rehearsed for the Grammy Nominations Concert at Nokia Plaza in Los Angeles last night She's been on top of the world since marrying Russell Brand in October - but Katy Perry looked more suited for the top of a Christmas tree when she was rehearsing for the Grammy nominations live show in Los Angeles