Riley says he has more unfinished songs in his computer
In an interview in 'Rolling Stone,' he says he will never allow his collaboration with MJ to be released
Opinions about posthumous Michael Jackson album are polarized
Disc will be released Monday, can be heard for free for one week
Much Too Soon' was written around the time of 'Thriller'
Some of the songs are him, and some aren't,' Michael Jackson's brother tweets
I don't see anything disrespectful about it,' Akon says
'Hold My Hand' had leaked in unfinished version in 2008
Sony shipping 900,000 copies to retailers in advance of December 14 release
The first single from album, 'Hold My Hand,' goes on sale Monday
First song posted online from posthumous album 'Michael'
First single off 'Michael' released next week