President Obama promised his administration would be transparent, and in a move to make good on his word, last month the White House released a list of visitors to the White House since he took office. Although the limited list is far from complete–the White House stressed that it’s voluntary and excludes many names for security reasons–there were a number of celebrity visitors in the mix. Here’s a look at some of our favorite stars that have popped in to see the Obamas this year.