Black Sabbath guitarist Tony Iommi and Iron Maiden drummer Nicko McBrain are teaming up with Deep Purple singer Ian Gillan and keyboardist Jon Lord to record a brand new song to help raise money to rebuild an Armenian music school.

The genesis of the song lies in the time Iommi and Gillan were part of a group of musicians that re-recorded Deep Purple's 'Smoke on the Water' in 1989. The song was redone in effort to help those affected by an earthquake in Armenia the year prior.

When the pair returned to the country this year to see how the funds they helped raise had benefited the local community, they visited a music school located in temporary accommodations. It was the only location struck by the earthquake that had not been rebuilt.

These hard rock legends are in the studio now working on the song.