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This or the Apocalypse drummer Aaron Maloney is on the mend after undergoing an emergency appendectomy. 

The surgery forced the metal band to cancel Sunday's tour stop in West Chester, Pennsylvania.  But even though Maloney will be on the sidelines for an unspecified amount of time, This or the Apocalypse is still in the game. 

The band announced on Facebook that Sirens and Sailors drummer Doug Court will be filling in for Maloney.  Court will be pulling doubly duty on the trek as Sirens and Sailors is also one of This or the Apocalypse's supporting acts.  Their tour resumed Monday night in Clifton, New Jersey, and is scheduled to stop next in Providence, Rhode Island on Wednesday.