Hear 'n Aid was a one-time collaboration of various individual heavy metal/hard rock artists in 1985 to raise money for famine relief in Africa. According to Ronnie James Dio's MySpace profile, the project raised $1 million within a year.
While attending a 48-hour charity Radiothon at the radio station KLOS, Dio members Jimmy Bain and Vivian Campbell noticed that representation from hard rock or heavy metal stars was low. In light of the success of Band Aid's "Do They Know It's Christmas?" and USA for Africa's "We Are the World", they forwarded an idea to Ronnie James Dio, also attending the Radiothon, and together decided to create a similar project exclusively built around artists from the hard rock/heavy metal scene. Together the three co-wrote the song "Stars."
The song was recorded on May 20 and 21 1985 at the A&M Records Studio in Hollywood, California. The project included contributions from Ted Nugent, Yngwie Malmsteen, Tommy Aldridge and members of Dio, Judas Priest, Iron Maiden, Quiet Riot, Dokken, Mötley Crüe, Twisted Sister, Queensrÿche, Blue Öyster Cult, Vanilla Fudge, Y&T, Rough Cutt, Giuffria, Journey, W.A.S.P. and Night Ranger as well as the parody band Spinal Tap. Lead vocals were shared between Ronnie James Dio, Rob Halford, Kevin DuBrow, Eric Bloom, Geoff Tate, Dave Meniketti, Don Dokken and Paul Shortino. Vivian Campbell, Carlos Cavazo, Buck Dharma, Brad Gillis, Craig Goldy, George Lynch, Yngwie Malmsteen, Eddie Ojeda, and Neal Schon all added guitar solos. Iron Maiden's Dave Murray and Adrian Smith were in the middle of their 'World Slavery Tour' at the time and flew in to attend the main session. A documentary was shot of the recording process and released simultaneously.