Biffy Clyro was forced to cancel their performance at the second weekend of Coachella and will not be able to play any other of their upcoming United States concerts.

Frontman Simon Neil has bronchitis.  Doctors have told Neil that he would endanger his long term health if he kept on performing.  The band has returned to the United Kingdom.

The band did perform at the first weekend of Coachella and supported Muse at Madison Square Garden in New York on April 15 and 16.