sentences:  Wilson also appeared as a special guest with Erykah Badu at her 2011 Coachella performance.In April 2011, Wilson performed with Robbie Robertson and Dawes on CBS's "Late Show with David Letterman", ABC's "The View" and "Later... with Jools Holland" in support of Robertson's album "How to Become Clairvoyant".In the fall of 2011, Wilson was invited by Roy Harper as a special guest at Royal Festival Hall as part of Harper's sold out 70th birthday celebration.