Postmodern Jukebox takes modern hits and makes them ten times cooler by covering popular songs with old-timey spin. They have done covers of plenty of pop hits, from 'Oops...! I Did it Again" to "Hey Ya," but their recent cover of the 90's rock staple "Black Hole Sun" by Soundgarden might be their best yet.
American Idol alum Haley Reinhart absolutely kills it on vocals, and would make both Doris Day and Chris Cornell proud. P.S. - She didn't even win American Idol, she came in third, which proves so hard that that show sucks.