Paul Simon underwent successful back surgery, but he must push back his Long Beach, Calif., show while he heals. A statement from the Simon & Garfunkel icon notes that the singer needs additional time to recuperate.

Paul Simon has canceled two concerts this weekend, according to a statement released just hours before a performance scheduled for Saturday night (June 28) at the Academy of Music in Philadelphia. Simon was set to play the venue both Saturday and Sunday night.

A statement posted to the singer's official Instagram account revealed he would be undergoing a "minor surgical procedure" in the coming days.