Gal Costa, a Brazilian singer recognised as one of the best, died this morning at the age of 77 The singer recently cancelled a concert in Sao Paulo due to medical orders.Gal’s public relations agency confirmed the sad news of the singers passing to AFP, with the short statement: “Unfortunately, we confirm.”A cause of death has not been immediately disclosed, however, the singer had to cancel a planned performance at the Primavera Sound festival in Sao Paulo.This was due to medical orders after she was told to rest following an operation where she had a nodule removed from her nasal cavity.Gal also had planned to return to touring next month, with her next concert listed to be on December 17 in Sao Paulo.READ MORE: Joan Collins, 89, almost unrecognisable in huge hair transformation Gal Costa dead: Legendary Brazillian singer dies aged 77 days after cancelling concert (Image: GETTY) Gal was very popular in Brazil (Image: GETTY) Gal performed in just September (pictured here) (Image: GETTY) Tributes have flooded in around the world for the late singer (Image: GETTY)Iansociologo added: “Saddened to hear the news of Gal Costa’s passing. Her wonderful music and voice was a doorway into becoming interested in Brazil. I must’ve listened to this album hundreds of times.”Fieldinghope commented: “So many parties, late summer nights and fond memories have been soundtracked by the music of Gal Costa.”What a remarkable artist, and what a legacy she’s left behind. RIP.”Gal was best known for her contribution to Tropicalia, a brief yet hugely influential counterculture movement in the late 1960s.more to follow…