Countless fans in London stand in a long line in front of O2 Arena early Thursday to buy tickets to Michael Jackson`s comeback concerts starting July 8. A total of 360,000 tickets have been sold. The biggest amount paid for a ticket on eBay is 10,000 pounds (13,960 U.S. dollars). Jacksons publicist said the King of Pop will hold 50 concerts through February next year instead of just 10 in July this year.