Katy Perry wears a crown to the 2013 Costume Institute Gala at the Metropolitan Museum of Art in New York.
Restart Met Costume Institute Gala 2013: Red Carpet Highlights
Heal Thyself: Taking a Fatal Diagnosis Into His Own Hands
Edward Norton's Approach to Environmentalism
Seeing (and Saving) Polar Bears in the Wild
Life Advice from John Cleese
A Sweater You Can Work Out In