Tickets for a highly anticipated Justin Bieber concert in Dubai have sold out, event organisers have confirmed.The Canadian superstar is one of the hottest properties in the global music business and he has legions of fans all over the world, including the Middle East.Bosses of Done Events announced that all 25,000 tickets have been snapped up, with "Fan Pit" access (closest to the stage) selling out in record time.The 19-year-old pop sensation will appear at The Sevens Stadium on May 4th in what is expected to be one of the gigs of the year in the UAE.Chief operating officer at Done Events Thomas Ovesen said he fully expected the tickets to sell very quickly."The fans have spoken - this is the biggest concert yet to be staged in Dubai and one that has now completely sold out - 25,000 lucky fans holding the treasured concert tickets will get to watch the first ever regional concert with superstar Justin Bieber," he remarked.Although there will be thousands of disappointed "Beliebers" who did not manage to get a ticket for the event, Mr Ovesen advised fans to keep an eye out for a number of competition giveaways."We urge fans still looking for tickets for the show to stay tuned to radio and local media," he added.Bieber first burst on to the international music scene at the tender age of 15 and he has gone on to become a megastar.He first started out by filming videos of himself putting a unique twist on songs by Usher, Stevie Wonder and Ne-Yo and then uploading them to YouTube. He managed to rack up more than ten million views just through word of mouth. It was clear then that the youngster had a special gift.The fact that one of the most sought after performers in the world is putting on a show in Dubai highlights the emirate's ability to attract the very biggest names.