Angelina JolieChristina AguileraMiley Cyrus

With Thanksgiving around the corner, have you thought about what you are thankful for this year? To help get you in the giving spirit, we've rounded up a list of celebrities that have shown their thanks by giving back and showing support to some top charities. From becoming global ambassadors to creating their own organizations and foundations, click through and see how celebrities are getting involved. You might even end up getting inspired as well.