Selena Gomez for UNICEF
Who: Selena Gomez, actress & singer
What: UNICEF
Why: UNICEF's mission has been to save and protect the world's most vulnerable children by promoting simple, low-cost interventions like hand washing and breastfeeding. Located in 190 countries across the globe, UNICEF works towards a more equitable world by fighting for the rights of children.
[Photo via @queenselenaag]