Justin Bieber Cancels Concert In Portugal

Access Hollywood
Justin Bieber performs onstage during Q102's Jingle Ball 2012 presented by XFINITY, at Wells Fargo Center on December 5, 2012 in Philadelphia -- Getty Premium

Justin Bieber has canceled one of his concerts in Portugal on Tuesday.

After a week in London that included a late concert start, fainting and an altercation with a paparazzo, the singer, who is on the "Believe" tour, will not perform in Portugal tomorrow.

PLAY IT NOW: Justin Bieber Explains His 'Worst Birthday'

"Due to unforeseen circumstances, Justin Bieber was forced to cancel the second operation, in Portugal, on 12 March," the company behind the show, Everything is New, said in a post on its website, per the New York Daily News. "Holders of tickets valid for March 12 should contact the respective place of purchase to receive a refund within 30 days of the date of the scheduled concert, which ends April 11."

Justin is, however, expected to hit the stage tonight in Lisbon, Portugal.

VIEW THE PHOTOS: Justin Bieber Photos: The Biebs Worldwide!

Copyright 2013 by NBC Universal, Inc. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.