American soul and R&B legend, Betty Wright, has died of a yet undisclosed cause.

The ‘Tonight is the Night’ singer died on Sunday at her home in Miami.

She was 66.

Her death was confirmed by Steve Greenberg of S-Curve Records, who said Ms. Wright had been diagnosed with cancer in the fall and underwent chemotherapy.

“She was an incredible writer, producer and mentor to young artists,” Mr. Greenberg said. “It’s an incredible loss.”

Wright’s niece also confirmed her aunt’s passing this morning on Twitter.

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