A.j. Mclean and Backstreet Boys
Harry Judd, James Bourne and Mcbusted
Next Backstreet Boys Slideshow: Backstreet Boys at Chateau - Las Vegas Nevada United States - Saturday 31st May 2014
The acclaimed performer had just cancelled touring due to a battle with cancer.
Many ticket-holders couldn't get into the O2 Arena show on Tuesday night (September 19th) because they didn't bring photo ID to match their booking.