The Jonas Brothers attended the White House Correspondents' Association Dinner in Washington, D.C., which was hosted by Jay Leno. However, the JoBros didn't fly solo - well, at least two of them didn't. Kevin brought wife Danielle and Joe brought Demi Lovato. Poor Nick had no lady on his arm.
Also in attendance were Scarlett Johansson, Justin Bieber, and, of course, President Barak Obama and the first lady.