(CNN) -- Britain's Prince Harry has revealed a secret. The fourth in line to the throne unveiled a hidden fear Monday in support of the #FeelNoShame campaign being run by his Sentebale charity for World AIDS Day. Prince Harry co-founded the Sentebale charity with Lesotho's Prince Seeiso in 2006 after being struck by the impact of AIDS/HIV on children and young people in the southern African nation. Throughout the day, celebrities including singer Joss Stone, actor Charley Boorman, race car driver Daniel Ricciardo, and former rugby player and sport commentator Will Greenwood will be revealing secrets about themselves as part of #FeelNoShame.
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December 1 is World AIDS Day, which is aimed at raising awareness of the virus globally
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Prince Harry co-founded the charity Sentebale in Lesotho in 2006, for HIV-affected children
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Sentebale is running a #FeelNoShame campaign for World AIDS Day
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Throughout the day, celebrities including Prince Harry are revealing their secrets
Wearing the red ribbon of the @placeholder awareness campaign, Prince Harry revealed his secret in a video message released at 1 p.m. GMT.
Please use the hashtag #FeelNoShame to share your secret on social media and show the children of @placeholder that they are not alone.