Selena Gomez: 'Sirius' About 'Who Says'

Selena Gomez lets out a hearty laugh as she has an interview with Sirius XM Radio in NYC on Monday morning (March 14).

The 18-year-old actress/singer, wearing Stuart Weitzman 50/50 boots in black, was there to promote her new single and video for “Who Says” — out on iTunes now!

Selena is also the latest celebrity to put their face on the Celebrity Tap Project.

The UNICEF Tap Project is a public service campaign that aims to draw attention to this serious issue and encourage the public to take action to reduce the numbers of children dying daily from waterborne illnesses, the second-highest cause of preventable childhood deaths in the world.

15+ pics inside of Selena Gomez…