On July 15, 2011, at 9 minutes and 18 seconds (give or take a second) into his press conference, Barack Obama told us he would be turning 50 in a week. I know - I listened to the video to make sure. My only regret is that I had to listen to 9 minutes and 17 seconds of the video to get that information.
If you'd like to check it out for yourself you can find the video at:
http://ochairball.blogspot.com/2011/07/obamas-news-conference-july-15-video.html
Feel free to listen to the entire thing... just know your limits (I exceeded mine).