Prince Harry has revealed his secret as part of Feel No Shame campaign to speak out about secret anxieties to reduce stigma associated with HIV/AIDS.
The 30-year-old prince said that he gets incredibly nervous before public speaking, no matter how big the crowd or the audience, the Guardian reported.
Prince Harry, who suffers from the fear of public speaking known as glossophobia, added that he gets incredibly nervous, if not anxious actually, before going into rooms full of people when he's wearing a suit.
To mark World Aids Day, other celebrities too joined the awareness campaign for the charity Sentebale, co-founded by Harry in 2006, to support children affected by Lesotho's HIV/Aids epidemic.
Singer Joss Stone confessed that she is mad about service stations, Gemma Arterton revealed that she has never seen Star Wars and Ex-boxer Ricky Hatton revealed that he is "petrified" of cats.