Usher explains why he didn't show at One Love Manchester concert

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Usher was among a variety of artists expected to perform at One Love Manchester benefit concert on June 4^th. 

The singer was forced to cancel as he had to take his son to a summer camp for kids living with diabetes.

He wrote on an Instagram post, "So happy to see that last night’s concert in Manchester proved that love always prevails. I would have loved to be there but it was my son’s first day at Camp Kudzu, one of the few summer camps for kids living with diabetes. This was an important day for him and for myself as a proud father. Stay strong UK."