Prince Harry is set to reveal a big secret today. Here's why

Update: [Prince Harry has revealed his secret for World Aids Day]1

Prince Harry is set to reveal a secret this lunchtime as part of a campaign designed to reduce stigma around HIV.

The Feel No Shame campaign, launched on World Aids Day, encourages people to share their own secrets using the hashtag #feelnoshame. It is being run by Sentebale, the charity co-founded by Prince Harry in 2006 in order to support vulnerable children affected by the Aids epidemic in Lesotho.

In a video message announcing the campaign, Prince Harry said he wanted to turn World Aids Day into "a day in which no-one should feel any shame about their secrets".

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

• Prince Harry

He's not the only one willing to share: public figures such as Ricky Hatton, Nicole Scherzinger, Gemma Arterton and Joss Stone are also involved in the campaign and videos will be released throughout the day divulging their secrets. So far Hatton has revealed he is scared of cats and Arterton has said she has never seen Back to the Future.

Prince Harry's secret will be published at 1pm. You can donate to Sentebale by texting FEEL01 £5 to 70070.

More: This is why Prince William is playing Angry Birds