The 'Rocket Man' singer spent two nights in intensive care after becoming "violently ill".
Queen have confirmed plans to release a new album featuring previously unheard tracks sung by late frontman Freddie Mercury.
In a recent interview, Brian May - who had previously teased the possibility of a new album - revealed that the record will be released by the end of the year and is likely to be called Queen Forever.
The unreleased songs date back to the 1980s and feature Mercury's vocals over recently recorded instrumental tracks.
May spoke about what the album will sound like, saying: "It is quite emotional. It is the big, big ballads and the big, big epic sound."
"We had to start from scratch because we only had scraps," he explained.
"But knowing how it would have happened if we had finished it, I can sit there and make it happen with modern technology."
Watch the music video for Queen's ‘Radio Gaga’ below: