Justin Vernon and Bon Iver have been everywhere recently promoting their stunning self-titled sophomore LP. Bjork has also been taking up a lot of our computer screens with the release of Biophilia and her Manchester residency earlier this month. Now we can do a quick post about both of them at the same time! Handy. Bon Iver is currently touring the states and while in Milwaukee at the Riverside Theatre Justin Vernon and co gave a big hat tip to Bjork by covering her track "Who Is It". You can take a look at some fan filmed footage at the top (more here) or courtesy of TwentyFourBit you can stream some decent quality audio of the performance below.