Norah Jones released her new Danger Mouse-produced album Little Broken Hearts yesterday, and she marked the occasion by performing new single "Happy Pills" on the Late Show With David Letterman. Jones also played an hour-long show in Letterman's Ed Sullivan Theater for one of those Live From Letterman webcasts. Watch both below. [videoembed size="full_width" alignment="center"][/videoembed] Little Broken Hearts is out ...