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How to record label execs like Simon Cowell make sure that their multi-million dollar producing boy bands don't go rogue? They sign them to contracts with millions at stake if any one of them dare walk away.

The lads from One Direction, including the newly single Harry Styles, have just signed a 3 year contract to not leave the band, and if one of them does then they all miss out on the millions. This is great news for their millions of tween fans!

A source revealed, "The formal length is for 36 months and an album a year - but the clever part is they get the big pay day after the three years. If one of them walks away before then, then all five miss out on the money. They don't miss out on a few quid either, we are talking millions.'

Most bands break up because of fighting within the group. Do you think any of them will risk leaving the band and screw the others out of their millions?