Freddie Mercury's songs thought to be lost could be released.
Queen members Brian May and Roger Taylor have said that the band are finishing undiscovered tracks recorded by Freddie, including collaborations with MJ from 1983.
Guitarist Brian told Mojo magazine: "There's more in there than we thought, in the Queen source archive.
"I'm a little nervous of saying there's an album there, but there's certainly a few tracks ... We've found some Freddie vocals, some demos."
The singer and the late King of Pop worked together 30 years ago in California but failed to release anything after struggling to find the rime to record further tracks.
Brian said: "We thought we'd exhausted everything that was around and could be worked on.
"But since then a number of things have come to light from various sources that we'd just plain forgotten about, including the stuff with Freddie and Michael Jackson."
Drummer Roger said nobody could decide what to do with the tracks so the Queen musicians stepped in.
He said: "They've been hanging around for years and years and Michael's estate haven't really been able to make their mind up about what to do with them.
"So we suggested we finish them and see. They're pretty good - one of them is great."
Queen, famed for their hits such as 'Bohemian Rhapsody' and 'It's a Kind of Magic' were formed in 1970 by Freddie, Roger, Brian and bass player John Deacon.
Tagged in Brian May Freddie Mercury Michael Jackson