Keith Urban bid his final farewell to his father Robert "Bob" Urban at his funeral, where the country star and American Idol judge and his family honored with moving tributes. His dad passed away peacefully at his home on Dec. 5 after battling cancer. In addition to Keith, Bob is survived by his wife Marienne , their older son Shane and four grandchildren, including Keith and wife Nicole Kidman 's daughter, Sunday and Faith , to whom he was known as "Poppa Bob."