Katy Perry performs during the PRO7 TV show 'Germany's Next Topmodel Final' at the Lanxess Arena on June 10, 2010 in Cologne, Germany.
(June 09, 2010 - Source: Friedemann Vogel/Getty Images Europe) see more angles »

Katy Perry Ballet Flats

Katy Perry opted for comfy pink ballet flats when she performed on 'Germany's Next Topmodel.'