Star was close friends with fashion icon Donatella Versace
A Prince Broadway musical or Cirque Du Soleil show could be on the way
The rare promo sold for over £10,000
Trust agreement could see start of unreleased music deals
Prince was also reportedly planning a Missy Elliott duet
The Purple One will be honoured at the awards show<br />
Selection includes live album from his 2007 London concerts
Celebration marks what would have been Prince’s 58th birthday.
The song is available as a free download
The star died in April at his Minneapolis estate