Start by getting a rag tag bunch of young boys.....you want a tough one, an older one, a cute one and throw in a couple more. Dancing is a MUST......they don't have to sing so good...that can be fixed in the studio....write some catchy pop tunes...and off you go.
and seeing that you are from the UK........this will go right over your head.
actually, seeing that the band in question is over 15 years old....it will go over everybodys head.:o