Selena Gomez, Jennifer Aniston attend WE Day California (45 images)
Stars participate in We Day California at The Forum in Inglewood, Calif. on Thursday. WE Charity, formerly known as Free The Children, is a worldwide development charity and youth empowerment movement founded in 1995 by human rights advocates Craig Kielburger and Marc Kielburger. Photos by Jim Ruymen/UPI
Singer Selena Gomez (L) is joined onstage by Nellie Mainor, a young fan who like Selena has dealt with her own serious health battles.
Actress Jennifer Aniston (L) and and founders of the #neveragain movement and organizers of the March for our Lives Cameron Kasky (C) and Jacqueline Coren (R) speak onstage.