Usher's had a successful run during his ongoing 'OMG Tour,' escaping any ill circumstances while performing in over 18 cities, that is until Friday night (Dec. 10) at the Prudential Center in Newark, NJ, where an unexpected injury occurred.

The 'Raymond v. Raymond' creator took to Twitter Saturday morning (Dec. 11) to break the news to more than 945,000 of his followers on the social networking site.

"Norfolk - the concert tonight is postponed due to an injury from last night. Pls read more at http://usherworld.com," Usher tweeted.

A post on his official website revealed that the singer would be canceling his scheduled performance at the Scope Arena in Norfolk, Va. today, Dec. 11, after falling victim to an injury at a show the previous night.

"AEG Live regrets to announce that today's scheduled appearance by Usher at the Scope Arena in Norfolk, Virginia, has to be postponed due to a physical injury suffered last night in a performance at the Prudential Center in Newark, New Jersey," representatives from AEG Live announced in a statement. "The attending physician has recommended that Mr. Raymond take the next 2 days to recuperate and heal. The injury is not serious and Mr. Raymond is scheduled to perform Monday night in New York City at the first of two sold-out shows at Madison Square Garden."

No details on the specific injuries Usher endured were listed. The 'There Goes My Baby' crooner is expected to resume the 'OMG Tour' and perform on Monday, Dec. 13, at Madison Square Garden in New York City.

Watch Usher on the 'OMG Tour'