Justin Bieber has postponed his performance at the New York State Fair in Syracuse due to illness. Fair officials say that the concert planned for Sunday (Aug. 29) is rescheduled for Wednesday (Sept. 1).

Bieber is currently on a nationwide tour that includes stops in New York City, Baltimore, Honolulu and many performances in his native country of Canada. The tour concludes Oct. 27 in Los Angeles.

Bieber tweets:

**really dont know what to twitter...im getting rest right now and trying to recover from the not so good news from the doctor...

**im gonna be ok just need 2 rest but i wanted all of u 2 know i never want to let any of u down. ever. i really appreciate all the kind words

**but today isnt about me it is about my hero....

**Happy Birthday to the best that ever did it....the greatest entertainer of all time...and my hero and inspiration. #HappyBdayMJ RIP