Britain's Prince Harry has revealed he gets "incredibly nervous" before speaking in public and feels "anxious" going into rooms full of people.
He shared his secret on video with other celebrities to support a campaign for World AIDS Day.
The disclosure came as part of the #FeelNoShame campaign for the Sentebale charity he co-founded - which aims to raise awareness of the stigma and shame which prevents people with HIV from seeking support.
Celebrities including singers Nicole Scherzinger and Paloma Faith and former boxer Ricky Hatton are also taking part.
Here's @Palomafaith and her #feelnoshame secret for Sentebale. See more here http://t.co/3I74F6Dfbn https://t.co/8zfELxSIws
— @Sentebale (@Sentebale) December 1, 2014
Thanks @NicoleScherzy who just revealed her secret for Sentebale. What’s yours? #FeelNoShame http://t.co/3I74F6Dfbn https://t.co/8o4sBOUHse
— @Sentebale (@Sentebale) December 1, 2014
Prince Harry launched the campaign from the microsite FeelNoShame.Today and released a video sharing his own secret.
He said: "My secret is, believe it or not, I get incredibly nervous before public speaking no matter how big the crowd or the audience."
"Despite the fact I laugh and joke all the time, I get incredibly nervous, if not anxious actually, before going into rooms full of people when I am wearing a suit."
"Now I have confessed that, I will probably be even more worried people are looking at me."
Earlier, he said: "Globally, HIV is the second highest cause of death amongst those aged between 10-19 years old, and it is the number one cause of death across Africa."
"One tragic issue in particular is the shame and stigma linked to HIV. This causes thousands of children to needlessly die each year because they're keeping their illness a secret and not getting the medical attention they need."
"Together, we can tackle the stigma surrounding HIV and give the young people carrying it the childhood they deserve. The childhood so many of us take for granted."
A number of events are also taking place across the country today to mark World Aids Day.
NUI Maynooth will host a seminar to highlight projects in South Africa to help prevent and treat the disease.
In Dublin, the Mansion House will be lit in red from early this morning to draw attention to the continued existence of HIV and AIDS in Ireland and around the world.
The latest figures show that 205 new cases of HIV were diagnosed in Ireland in the first half of 2014.
Cathy Ferrier, chief executive of Sentebale, said: "Too many children are not receiving the treatment and care they so desperately need due to the stigma attached to HIV."
"Today we will celebrate the sharing of secrets with #FeelNoShame, to help spread the word that eradicating the stigma surrounding HIV will help save the lives of many HIV-positive children."
Prince Harry co-founded Sentebale in 2006 with Prince Seeiso of Lesotho. The charity provides accommodation, food, access to medication and education for children in Lesotho - preventing the virus from spreading - as well as support to help them tackle the stigma of HIV.
