Pop Life: I'm in a Boyband

What are the secrets of the boyband? How are they formed? Boyband members and industry insiders past and present share the tips of the trade and what it's really like to be in a mega-successful all male pop group.

Part three may be blocked on copyright grounds for some people. (Thank You, channel 5). It seems to be blocked only 
in the UK, so iplayer here

Here is the URL to part three for the rest of you.

NB: If your faves are in the tags, they get at least a mention in this but the themes discussed are relevant for pretty much any boyband you care to think of. :)