Prince Harry and Elton John attended a High Court hearing against Associated Newspapers.

They are part of a group suing the UK publisher over alleged phone-tapping and privacy breaches.

Harry accused the papers of using unlawful means to obtain stories about him, his brother, and Kate Middleton's mother.

The papers sought information about Harry's ex-girlfriend and bugged his friends' phones.

The actions led to Harry losing friends and being deprived of important aspects of his teenage years.

The attempts to find out details of Harry's private travel plans were a significant security risk.

ANL denies the claims and says the evidence is based on inference.

The hearing is ongoing.

Harry and John are among several high-profile figures to take legal action against ANL.