Backstreet Boys have reunited as a five-piece group for the first time since 2006.
The pop group - who are made up of Nick Carter, Brian Littrell, Howie Dorough, A.J. McLean and Kevin Richardson - took to the stage for US TV show Good Morning America's Summer Concert Series in New York's Central Park last Friday.
The boy band performed '90s classics Everybody (Backstreet's Back) and I Want it That Way and Kevin - who rejoined the group three months ago after quitting in 2006 - admitted he was delighted to be back performing with his fellow boy-band members.
Nick also faced tragedy earlier this year when he lost his sister Leslie, 25, from an apparent overdose, while A.J. checked into rehab in July 2011 for "personal reasons".
Backstreet Boys - who have sold 130 million albums worldwide - are currently working on a new album to be released next spring, which will coincide with the group's 20th anniversary.