Katy Perry: Red Nose for Red Cross!

Katy Perry makes a silly face as she rocks as red nose and leaves Radio 1 on Thursday (March 17) in London.

The 26-year-old singer showed her support for Red Nose Day, which is a fund-raising holiday to raise money for Comic Relief.

Earlier in the day, Katy tweeted “LONDON! I’M URS FOR 3 NIGHTS! It’s gonna be. so. amazing! TONIGHT we’ll have #REDCROSS friends everywhere so u can do your part for #JAPAN!”

FYI: Katy is wearing a Zig Zag Raffia Panelled Shift Dress from Matthew Williamson.

10+ pictures inside of Katy Perry leaving Radio 1…