Two estranged siblings must set aside their differences to deal with their mother's death and her hidden past – a journey of discovery that takes them from the Caribbean to London to California and ends with her famous black cake.

They are pop stars. They are actors, performers, and goddess-like in the eyes of their adoring public. But it isn't just about fame, success, or pulling off a sequined gown. They are driven, inspiring, and victorious. With larger-than-life personalities and their philanthropy, they have become some of the most recognisable and immortal names in music. These superstars stun everyone with their talent, and leave a trail of admirers in their wake as they make their mark on history. We call them Divas. And some, remarkably stand out as women of sheer talent, star presence, and supreme success. One of the greatest performers of our time, Tina Turner, has captured the hearts and souls of millions around the world with her powerful voice, electrifying stage presence, and inspiring life story.