Robbie Williams left Take That for a
wedge of cash to form an initially successful solo career. Got into drugs, women, men, pies,
rehab, more drugs, burgers, women, men, etc...
Even though his musical career is now on its arse he refuses to rejoin Take That, probably because he's embarrassed himself enough without them dragging him down further.
When life just gets too hard and he just can't work out what to do with all that money, he books himself into rehab where they can
pander to his every
whim and make everything all right again (
kerching kerching).