"What We Have Known" is a single by American singer-songwriter Joanna Newsom, released on Drag City on July 19, 2011.[1][2] The song originally appeared on the 2003 EP Yarn and Glue, and was re-recorded as the B-side to the 2004 single "Sprout and the Bean" before being released on its own 12-inch vinyl in 2011.[3] One side of the vinyl is playable, while the other side has an etching.[4] The cover artwork was designed by Becca Mann.[5] It peaked at number 20 on the UK Physical Singles Chart.[6]