The Queen of Soul released a statement Thursday saying her surgery was "highly successful" and thanking her fans for their well wishes, the Associated Press reports. It was not revealed why the singer needed surgery in the statement.

"God is still in control. I had superb doctors and nurses whom were blessed by all the prayers of the city and the country," the statement continued.

News of Franklin's surgery comes about a month after she announced she was canceling all concert dates and personal appearances through May on the order of her doctors. That announcement came after Franklin's brief visit to a Detroit hospital--no details were given about her condition at the time.

It's been a difficult several months for Franklin, whose hits include '(You Make Me Feel Like) A Natural Woman,' 'Chain of Fools' and her signature song 'Respect.'