The soprano recounted an anecdote from the book's foreword by Francis Collins, which describes an impromptu sing-along at a dinner party attended by Supreme Court justices.
The significance of the song was amplified by praise from music legend Paul McCartney, who called the recording "magnificent" and appreciated its reinforcement of the civil rights message he intended when writing "Blackbird."
The book covers Rae Wynn-Grant's remarkable 20-year career, her experiences in the field, and the obstacles she's overcome in a profession where she often felt like an outsider.