The Duke of Sussex wore a dark suit, which he contrasted with a white shirt and gray tie.
As OK! reported, Harry sued the publishing company for unlawful information gathering, claiming they've hacked his phone on countless occsasions.
The Spare author also explained how the media's decades-long scrutiny affected the way he grew up, noting he's had "a very difficult relationship with the tabloid press in the U.K."
"You start off as a blank canvas while they work out what kind of person you are and what kind of problems and temptations you might have," he spilled in his testimony. "They then start to edge you towards playing the role or roles that suit them best and which sells as many newspapers as possible, especially if you are the 'spare' to the 'heir.'"
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"You’re then either the 'playboy prince,' the 'failure,' the 'drop out' or, in my case, the 'thicko,' the 'cheat,' the 'underage drinker,' the 'irresponsible drug taker', the list goes on," he said. "I ended up feeling as though I was playing up to a lot of the headlines and stereotypes that they wanted to pin on me mainly because I thought that, if they are printing this rubbish about me and people were believing it, I may as well 'do the crime,' so to speak."
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Harry said he then went on "a downward spiral, whereby the tabloids would constantly try and coax me, a 'damaged' young man, into doing something stupid that would make a good story and sell lots of newspapers."