What is "whocares"

WhoCares was a supergroup formed by Ian Gillan of Deep Purple and Tony Iommi of Black Sabbath in 2011 with the participation of a great number of rock artists as a charity project to raise money to rebuild a music school in Gyumri, Armenia after the destruction of the city in the 1988 earthquake in Armenia. The album sold more than 20,000 copies in Europe.