Breaking up is easy to do, as past boybands show
By 1999, Boyzone were seven years on the road and Ronan Keating (right) was weighing his options as a solo artist. His success was not as long-lasting as he would have hoped and Boyzone got back together in 2007.
Robbie Williams' departure in 1995 signalled the beginning of the end: in February 1996 they announced they were disbanding. After reuniting in 2005 they are more popular than ever, but their tax affairs have come under scrutiny recently.
It was only in 2007 that it was confirmed 'N Sync had broken up. By then, Justin Timberlake was on course to become his generation's pre-eminent song and dance man.
Singer Charlie Simpson's determination to become a credible musician led to tensions and he left in 2004. The two remaining members merged with McFly and will shortly play Dublin as 'McBusted'.