The CNN story, "Lady Gaga cancels tour, will have hip surgery", has a basic news report structure.
It starts with a lead that summarizes the basic story, including the fact that she has cancelled the rest of her tour and the reason why--her hip injury.
The second paragraph ads detail about the injury and a statement from a tour operator about why she has to cancel the rest of her tour.
Statements from Gaga's twitter follow the basic facts to give her point of view on the situation.
The story concludes telling fans how they can get refunded.
The structure displays the effective use of a basic inverted pyramid structure. The most important information is given first, followed by more specific and less crucial information. This is the best way to report this announcement in my opinion.