Usher was set to perform in Berlin on Wednesday night, but an upper respiratory problem forced him to cancel the show and reschedule it for the next night... but the problems didn't end there.

According to German tabloids, Usher lip synced the first two songs and was was dancing so poorly that the crowd began to boo.  Usher reportedly lowered his head and stood on stage for almost four minutes before walking off.  The house lights came up and the fans were informed that Usher was too sick to continue.

In a statement released today, Usher said,

"I deeply regret having to reschedule the shows.  I am truly sorry for any inconvenience I have caused my fans. My fans are the best in the world and I am looking forward to getting better so that I can give them the show they deserve."

Later shows in Rotterdam and Antwerp have been rescheduled for March.

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