Twitter was active this week, with our favorite celebs sharing photos from their many adventures. Kristen Stewart said hello to Regis and Kelly while promoting The Runaways, and Lauren Conrad showed off her new friends. Reggie Bush was back in his Saints jersey, while Demi Moore got a surprise gift from Ellen DeGeneres. Click through to see the snaps we've gathered, and don't forget to follow us on Twitter for exciting news and exclusive photos!
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