It was another surprising week of fun and memorable Twitter pictures from some of our favorite celebrities. Lindsay Lohan admired herself in a black and white photo during a photo shoot while Joe and Frankie Jonas posed with their dog Elvis. Neil Patrick Harris was caught in a headlock by Dwayne Johnson and Travis Barker rocked out with Rihanna. Click through to see what they were up to and don't forget to follow us on Twitter for exciting news and exclusive photos!