Robin Williams joked he now has a "cow valve" in his heart after undergoing surgery. The comic star laughed his way through his first public appearance since undergoing heart surgery two months ago, on TV program "The Late Show with David Letterman."

Robin Williams is recovering well after having heart surgery. The comedian underwent a three-and-a-half hour operation at Ohio's Cleveland Clinic on March 13 and is now resting.

Robin Williams is to undergo heart surgery. The comedian was admitted to a south Florida hospital - believed to be University of Miami/Jackson Memorial Medical Center in south Miami - after experiencing shortness of breath this week and his representative has now confirmed he will need an operation to correct his condition.

Robin Williams has cancelled several shows after experiencing shortness of breath. The comedian was due to perform his one-man show 'Weapons of Self-Destruction' four times in Florida, but called them off after seeking medical advice.

Robin Williams is having beaver for Thanksgiving. The "Mrs. Doubtfire" actor - who raises a son with ex-wife Valerie Velardi and has two children with estranged wife Marsha Garces - is refusing to have the traditional turkey meal on November 25, insisting he wants to try something unique.

Robin Williams has vowed never to marry again. The "Mrs. Doubtfire" actor has been married twice - he split from his wife second wife Marsha Garces earlier this year - but claims he has no intention of tying the knot a third time as he couldn't face another failed relationship.

Despite her parents' ongoing divorce process, Robin Williams' daughter insists there's no drama in the family as they are all aware that the split is going to happen.

Funny man Robin Williams may not be laughing for a while. His wife of 19 years, Marsha Garces Williams, filed for divorce on March 21 in San Francisco citing irreconcilable differences. The couple have two children together, daughter Zelda, 18, and son Cody, 16.