It's believed she's been secretly battling cancer for some time now. 18 Grammys and the first woman to be inducted into the Rock and Roll Hall of Fame.
Sources close to Franklin described the singer to the AP as "seriously ill", although they did not provide any additional details as to the severity or the cause.
All the best to Franklin and her family and friends during this hard time.
She later confirmed she had had a tumour removed.
Aretha was raised in Detroit and her father, C.L. Franklin, was a church pastor and civil rights activist. All further announcements will be made by her family.
"My brother was there on Saturday and she was alert, talking, laughing, joking", Tim continued.
Carey, who considers Franklin one of her biggest influences, wrote on Twitter that she is "praying for the Queen of Soul".
In 2005, Ms. Franklin was awarded the Presidential Medal of Freedom - the highest award for an American civilian - by then-president George W. Bush. "She has influenced so many people", said Shirley Marks Whitmore, a founding producer of the show, which is put on at Miller Outdoor Theater in Hermann Park every spring. She was originally scheduled to perform on her 76th birthday in March in Newark, N.J., and at the New Orleans Jazz and Heritage Festival in April. Rumors circulated that her condition placed her "near death", but her family has backed off that claim. "I can't think of a more American singer than Aretha Franklin".