Tributes are flowing in on social media for Aretha Franklin, who died at her home in Detroit on Thursday (local time).
Elton John led the way, describing the loss of Franklin as "a blow for everyone who loves real music".
"Music from the heart, the soul and the Church. Her voice was unique, her piano playing underrated she was one of my favourite pianists," he wrote on Twitter.
"She sang and played magnificently, and we all wept. We were witnessing the greatest soul artist of all time. I adored her and worshipped her talent.
"God bless her. My condolences to all her family and friends. We shared the same birthday and that meant so much to me."
Beatles star Sir Paul McCartney also took to Twitter to pay his respects to the soul legend.
"Let's all take a moment to give thanks for the beautiful life of Aretha Franklin, the Queen of our souls, who inspired us all for many many years," he wrote.
"She will be missed but the memory of her greatness as a musician and a fine human being will live with us forever."
Many other notable figures around the world posted tributes to Franklin, including politicians Hillary Clinton and Donald Trump and singer-songwriter Carole King.
"Mourning the loss today of [Aretha Franklin] who shared her spirit and talent with the world. She deserves not only our RESPECT but also our lasting gratitude for opening our eyes, ears and hearts. Rest in eternal peace, my friend," Ms Clinton said.
"The Queen of Soul, Aretha Franklin, is dead. She was a great woman, with a wonderful gift from God, her voice. She will be missed!" Mr Trump wrote.
" What a life. What a legacy! So much love, respect and gratitude. R.I.P," Ms King said.