Michael Jackson is rumoured to have a fourth child.

Omer Bhatti, a 25-year-old Norwegian dancer, is thought to be the Billie Jean singer's child from a one night stand in 1984.

Michael, who passed away last month, is said to have admitted to friends in 2004 he was his father.

Omer is now believed to be seeking a DNA test to determine if he is a descendent of the King of Pop .

The performer was also given a front row seat at Michael's memorial service on July 7, sitting next to the star's brothers and sisters, fuelling speculation he is related to the pop icon.

Although Omer's mother Pia and her husband Riz - who have both worked for Michael - refuse to talk about the star, Pia did tell Britain's The Sun newspaper yesterday (21.07.09): "He was the King of Pop. But to us he was so much more."

Omer has also previously spoken about his special bond with the Thriller singer, describing his loyalty in 2008.

He said at the time: "Loyalty is the most important thing for me. I have contact with Michael, and I think my loyalty to him is the reason we still have our contact. He is an unbelievably good human being."

Omer also lived at Jackson's Neverland ranch home for several years from 1997, and video footage exists of him unwrapping presents with Michael and playing with a toddler, believed to be one of Michael s other children Prince Michael, 12, Paris, 11 and Prince Michael II, also known as Blanket, seven.

The dancer was also at Neverland, in California, when police raided the property to investigate child molestation allegations in 2003.

Omer first met Michael in Tunisia in 1996 aged 12, and impressed him with his dance moves. He has since performed with the Smooth Criminal singer in public and worked as a Michael tribute act across the globe.

The dancer's stepfather Riz is believed to have worked as a driver for Jackson while his mother is thought to have been a nanny.

Yesterday, Riz confirmed his stepson was in the front row for the emotional memorial concert at the Los Angeles Staples Center.

He said: "I know because I was watching. I told my wife, 'Just wait untilthe press see this. It's not a small thing. Make what you like. I don'twant to discuss anything."