Fans of exhausted British pop star Robbie Williams have voiced their concerns about his failing health after he cancelled the Asian leg of his current world tour, but insist it's no surprise.

The singer's management made the announcement on Friday (15SEP06) after his sell-out gig in Milton Keynes, England, the night before.

They explained he was "extremely tired" after kicking off his tour in May (06).

Fans who attended the Thursday (14SEP06) concert aren't shocked by the news.

One says, “He was out of control, touching up the backing singers and making a pass at the keyboard player. You could see it all on the big screen."

Another added, "He just wasn't himself. He couldn't stop sweating."