Sky Blue Sky, the new WILCO album is scheduled for a May 15th release. 3 tracks have been released into the wild. They may or may not be the final versions, but you can have yourself a listen here.
If you are familiar with WILCO, you know that the leak of Yankee Hotel Foxtrot led to one of the most famous and most bizarre label dropping and signings in music history. The leak helped their career a great deal. If you don't know the story, go rent a copy of "I Am Trying To Break Your Heart."