Keith Urban and Nicole Kidman took some time out of their busy schedules and visited some kids at a children's hospital in Melbourne, Australia. Then, this morning rumors surface that their marriage might be coming to an end.    

Keith even got everyone to join in with him singing 'Amazing Grace'.

Earlier today, I saw a news story that Keith and Nicole's marriage might be in trouble. From Yahoo News:

According to Grazia magazine, Hollywood superstar Tom Cruise's former wife has been strug­gling to cope with hectic work schedules and long sepa­rations from the American Idol judge.

"Tensions are reaching boiling point within their marriage. It's no secret that they're spending increasing periods apart, and Keith's close friendship with J-Lo won't have helped, especially as both Jen and Keith are returning to American Idol next season," an insider told the publication.

via Nicole Kidman and Keith Urban Heading for Divorce? Couple's Marriage 'Under Strain' - Yahoo News UK.