This would definitely explain how Selena Gomez got to know Orlando Bloom -- and it's all for a great cause!

Selena, Orly, Jennifer Hudson, Seth Rogen, Clive Owen, Edward Norton and Joe Jonas are among the stars who are featured in a new PSA for the We Are Silent campaign to support Malala Yousafzai.

The campaign promotes going silent on April 17 for 24 hours for the millions of girls around the world facing poverty, exploitation and the denial of their right to education. Yousafzai was famously shot in the head by the Taliban back in 2012 when they found out she was campaigning for girls’ rights to go to school. Not only are we glad that she survived and took a stand, but it's awesome to see so many celebs getting involved!