Over the weekend, the steely and sultry Polica brought out Justin Vernon at Coachella to join in a new song entitled Tiff.  All of which is understandable given that Vernon and key members of Polica had ganged up previously in GAYNGS.  Vernon is showing no signs (in a possible post-Bon Iver world(?)) of slowing down given this collaboration and his support of Colin Stetson on Stetson’s new album.