From Star-Studded Charity Events to Product Promotions

By: Rose Nazarali - Published:   Updated: Mar 24 2011
People have turned to celebrities to find the latest in fashion, technology, and pop culture for decades. As of late, celebrities have been using their star powers to promote charities and causes.

Check out the slide show below to see everyone from Angelina Jolie to Rihanna and Katy Perry raising awareness.