John Mayer has cancelled his upcoming tour because another granuloma has grown on his vocal chord. Mayer underwent throat surgery to remove a collection of immune cells on his vocal chords last fall. Mayer reportedly thought he had made a full recovery and was to begin a tour in Indiana in April. John announced on his Tumblr page, that he is going to need to put his tour on an indefinite hold. He said, “During rehearsal on Tuesday, it came to mind that I should see my throat doctor because something didn’t feel/sound right. I went in for a visit on Wednesday and a scope of my vocal cords revealed that the granuloma has grown back where it had mostly healed. Because of this, I have no choice but to take an indefinite break from live performing. Though there will be a day when all of this will be behind me, it will sideline me for a longer period of time than I care to have you count down…” John continued, “Somewhere in all of this is another surgery and a very long chemically-induced period of silence, so I hope you’ll understand that I have to really pick that date carefully. I’m pretty emotionally burnt out at the moment, but please know how hard I tried to resolve this and how disappointed I am that I can’t perform… I’m completely bummed, especially for all of you who started making plans to see a show… The only thing that stops me from devolving into a puddle of tears is knowing that it’s a long life, and the greatest gift in the world is being able to create music no matter what the circumstances.” John’s album, Born & Raised, will still reportedly be released in May.