I was shocked to hear about Donna. She was so vital the last time I saw her a few months ago.
I loved doing the duet with her. She had an amazing voice and was so talented. .. It's so sad.
More top news
A major new discovery has been made towards finding the cause of multiple sclerosis (MS) - potentially paving the way for new treatments.
France will now decide on May 7 who will replace incumbent Francois Hollande as president.
Police said the child, who was without a driving licence, was trying to make his way 2,500 miles from the east coast to Perth.