In 2009, I traveled to South Sudan with my organization PSI. While there, I visited a local school and met with a group of children who had formed a water club. The group learned about how to treat their drinking water and use proper hygiene practices, such as washing their hands before eating or after going to the bathroom.

I'm minimalistic when it comes to makeup, so I'm a sucker for anything that's multi-tasking. Aquaphor is my go-to product. It's great for adding gloss to eyes and cheekbones, and amazing for soothing dry cuticles, too.

I love rollercoasters, thrill-seeking, all of that is fun.

I'm lucky to attribute my success to the foundation my family gave me. I've always felt grounded in them.

As an Ambassador for PSI and a supporter of Nothing But Nets, I have met individuals around the world who are lending their ideas, their voices, and their time to improve their communities and the world at large. And there are millions more that I have not met.

Pneumonia is a disease that often flies under the radar of not just the public but even the global health community. It kills more children under 5 years old every year than AIDS, malaria, and measles combined.

I guess I have sort of an atypical relationship with my mom for someone my age, because I think I started so young with the music thing and I had my parents always on the road with me. So at a time when I think I should have been rebelling like in high school, they were actually my best friends.