Thanksgiving 2012: Celebrities such as Ryan Seacrest Tweet, share photos

9 of 19: Dwayne Johnson, aka The Rock, Tweeted this photo on Nov. 22, 2012.

'Flew in from London to spend just a few hours w/ my family. Now flyin' back to London.. #AGratefulMan #HappyThanksgiving,' he said, adding: 'Devouring all kinds of pie (and cupcakes) always makes me smile.. #DevourSlowly #HappyThanksgiving.' ( Photo / twitter.com/TheRock/status/271740725249576960/photo/1)