A lawyer for Michael Jackson's estate has released a statement outlining the measures his employers took to ensure the vocals on the singer's new posthumous album were really his.
Jackson's brother Randy and other members of the family have claimed that some lead vocals on the album are not Michael's. The singer's label, Sony Music, have denied the claims.
Jackson's estate have officially denied the claims too.
Howard Weitzman, attorney for the Estate Of Michael Jackson, gave a statement claiming that great lengths had been gone to to make sure the vocals were genuine.
In the statement Weitzman explained how six of Jackson's former producers and engineers – Bruce Swedien, Matt Forger, Stewart Brawley, Michael Prince, Dr Freeze and Teddy Riley – listened to songs that had been recorded in 2007 with musicians Eddie Cascio and James Porte, and used on the album. He said they all thought the vocals were Michael's.
He added that further figures close to Jackson also confirmed the authenticity of the vocals, but did urge fans to make up their own minds.
"Although there still seem to be concerns being expressed in some quarters about the authenticity of the lead vocals," he wrote, "ultimately Michael's fans will be the judges of these songs, as they always are.
"We take all fan comments very seriously, and, as I'd stated, there is nothing more important to the estate than Michael's music, his legacy and his fans. Michael's fans are extraordinary in their quest for accuracy and their passions to raise their voices in a search for truth.
"We are continuing to follow up with those who have worked in the studio or on tours with Michael, and if any new information comes to light, we will keep you and the fans advised."
'Michael' is released on December 13.