Andrew Bird and his old Squirrel Nut Zippers bandmate Jimbo Mathus have reunited for These 13, their first album together since SNZ's 2000 album Bedlam Ballroom. Mathus and Bird co-wrote all 13 songs, exchanging ideas sung, hummed, whistled and played into their phones, adding to each other's ideas. The album was produced by Candy Butchers' Mike Viola