Michael Jackson and Freddie Mercury duet to be released
Three previously unheard songs recorded by Michael Jackson and Freddie Mercury are due to be released: http://bbc.in/17e8p3s
Queen guitarist Brian May says the material, which is 30 years old, will come out later this year.
Broadcaster Paul Gambaccini told BBC Radio 4's Today programme why the collaboration was known as "The Llama Sessions".
And Guardian journalist Laura Barton explained that she didn't hold high hopes for the quality of the tracks.