Michael Jackson’s Self-Professed Long Lost Son — Going Public with DNA Evidence.

There’s a 99.9% chance a 31-year-old man is Michael Jackson’s illegitimate son … at least that’s the claim after an alleged DNA test turned up a match.

According to the test results — obtained by Alki David and his company, FilmOn.com — Brandon Howard is almost certainly Michael’s son. David told TMZ Live he got MJ’s dental impression from a Beverly Hills doctor that he got at an auction. The impression is 30 years old but David says its filled with DNA.

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Brandon — who now goes by B Howard and looks and acts very much like Michael — was not present for the unveiling, but David says he had Howard’s DNA and it matched up.

David would not say which lab performed the DNA test, but says it showed a clear match.

Brandon’s mom — Miki Howard — is a famous gospel singer who Michael knew. She went by the name “Billy” back in 1982. Interestingly … a year later Michael released “Billie Jean,” which included the lyrics, “Billie Jean’s not my lover” and “The kid is not my son.”

For B Howard’s part — he’s distancing himself from the whole spectacle, insisting he had nothing to do with it.

Michael Jackson has a 31-year-old son — at least that’s what the man claims — and we’re told he plans to go public on Thursday with what he believes is ironclad DNA evidence.

His name is Brandon Howard — the son of singer Miki Howard, whom Joe Jackson represented back in the 1980s.

Sources close to Brandon tell us, Miki and MJ met in 1982 and Brandon was born soon after.

Brandon grew up in Cleveland and now lives in Miami. He’s now a singer who goes by the name B Howard. And he’s had some success. We’re told he’s part of a new Akon song.

As for why B Howard is so sure he’s MJ’s son … our sources say he somehow acquired DNA from an old orthodontic device worn by Michael … it’s unclear how he got hold of it, but we’re told the test results show a match.

Oh yeah … once the DNA results are revealed, he plans to go after the MJ Estate for money.

Estate lawyer Howard Weitzman tells TMZ, “We’ve never even heard from him,” adding, “Any deadline for claiming to be Michael’s child has long since passed.”

Check out the music video B Howard released in 2011 — in which he blatantly bites MJ’s dance moves and vocals.