Justin Bieber has turned New York red and green after lighting up the Empire State Building to promote new children's movie Arthur Christmas.
The teen pop sensation, whose festive song Santa Claus is Coming to Town features on the animated film's soundtrack, headed to the Big Apple landmark on Friday (18Nov11) to flip the switch and mark the start of the holidays.
Bieber had a busy day - he then went to delight sick kids as part of a special meet-and-greet set up by organisers at the Make-A-Wish Foundation charity.
Taking to his Twitter.com page after the event, he wrote, "MakeAWish thanks for having me. best part of the job. Everyone follow them as they r (sic) an inspiration."
The singer also reportedly managed to fit in a doctor's appointment and submit to a Dna test on Friday to disprove allegations he fathered a child with California woman Mariah Yeater.