OTTAWA, July 31 (Reuters) - Canada has launched an

investigation into a data breach at Live Nation Entertainment ( LYV )

unit Ticketmaster that impacted the personal information

of millions of individuals worldwide, the country's privacy

commissioner said on Wednesday.

"Ticketmaster holds the personal information of millions of

Canadians. The investigation will allow us to understand why

this cyber incident happened and what must be done to address

this situation and prevent it from happening again," the Privacy

Commissioner of Canada, Philippe Dufresne, said in a statement.