INTERVIEW - Katy Perry on being appointed a UNICEF ambassador today. On her travels with UNICEF, on her life changing trip to Madagascar. On getting out of her bubble, readjusting her priorities

INTERVIEW - Katy Perry on being appointed a UNICEF ambassador today. On her travels with UNICEF, on her life changing trip to Madagascar. On getting out of her bubble, readjusting her priorities. On UNICEF's work with the Philippines, on wanting to shine a light on what's going on. On her holiday plans. Jokes that her family doesn't do gifts, they just eat too much and push their mom's buttons at The Ninth Annual UNICEF Snowflake Ball at Cipriani, Wall Street on 2013-12-03 in New York City.