In our Hollywood Insider feature last week we told the story that a major Hollywood star was close to revealing he was living with HIV and now we apparently know that person's identity.

Charlie Sheen will make the announcement that he is HIV positive on the "Today Show" on NBC Tuesday morning. He will sit down with Matt Lauer to reveal the news.

NBC sent out a press release this morning touting that Sheen would make a "revealing personal announcement."

A tabloid report came out today claiming that Sheen has been keeping this diagnosis a secret for years.

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