A 25-year-old dancer reported to be Michael Jackson's secret son attended his memorial service and sat with the singer's family members, it's been claimed.

Omer Bhatti was pictured alongside Jackson's brothers and sisters at the ceremony in the Staples Center two weeks ago.

His attendance has increased speculation that Bhatti, from Norway, who looks similar to Jackson's youngest child, seven-year-old Blanket, is related to the singer.

According to the Sun newspaper, Jackson told friends in 2004 that Bhatti had been born following a one-night stand in Oslo in 1984.

The 25-year-old is now said to be seeking a DNA test to discover the identity of his father.

The newspaper claims Bhatti and Jackson first met in 1996 and that the dancer lived at the singer's former Neverland home for several years.

During this time he is understood to have developed a close relationship with Jackson's other family members.

Bhatti's mother is now said to be married to a Pakistani man, who is quoted as telling The Sun that he expected the dancer's appearance at the memorial to cause interest.

He said: "Yeah, yeah, I know because I was watching. I told my wife, 'Just wait until the press see this. It's not a small thing'."

Jackson has three known children – Prince Michael, 12, Paris Katherine, 11, and Prince Michael II, also known as Blanket.

(by Jason Gregory)