Chris Brown has rescheduled his US tour because he isn't allowed to travel before completing a community service sentence.

The R&B man is undergoing a community service plan for breaking parole relating to his 2009 assault of Rihanna.

He was scheduled to open his Between The Sheets tour tonight (January 27) in Virginia, but it has been postponed.

Brown wrote on Instagram: "I would first like to apologise to all the fans and people who have been supporters of me and all the music over the years. The beginning of the BTS tour has been moved to later dates now. 

"The judge would not sign off on my travel to do the tour until I finish these last 100 hours of community service. I promise that I am busting my ass doing it everyday until it's complete. This is the most disappointing news I've gotten in a while.

"Everything happens for a reason so I wanted to personally inform my fans. The show must go on. Out of 1000 hours I only have 100 left. I will work my ass off to complete it and I will be on that stage. Once again I'm sorry for the delay. I love y'all! We will let y'all know the dates that are changed. It's not cancelled. Just moved around a couple weeks."

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Watch Chris Brown performing live below: