Pop superstar Robbie Williams can't decide if juggling a successful solo career with marriage is a good idea.

The SHE'S THE ONE singer is envious of other stars' ability to combine meaningful relationships with their high-profile day jobs - but can't help feeling proud he's avoided a messy divorce and child support so far.

He says, "Other people have had this level of success and they've also managed to juggle that with being married and having kids.

"I just think, God, at least they tried out marriage. Even Michael Jackson and Lisa Marie Presley! Even f**king Elton John tried that one.

"On the other hand, of course, there is a sense in which I want to pat myself on the back and say, 'Well, f**king hell, you got through your twenties without getting divorced, there's no single mothers running around with your babies and you have no lifetime attachments to people that you hate."