NPR has a couple of albums that you can stream from their site.

First up is the new collaboration by Shins frontman, James Mercer, and Danger Mouse called Broken Bells.  While the Shins linup is changing, the band is going to a new label, and Gnarls Barkley is between albums, Broken Bells formed and put out a pretty fantastic record.

Second is the latest installment from Gorillaz who will headline Coachella later this year.

UPDATE:  fixed the Broken Bells link as it was broken.  Thanks Erik!