The British artist works in the borderland between soul and jazz and has been hailed by critics as Amy Winehouse's heir. Her latest album, "Woman of Faces," was released in November.
It is already known that Zara Larsson, Sombr, Lily Allen and Veronica Maggio will be the big draws at the festival in Slottsskogen in Gothenburg on August 13-15, where acts such as The Cure, Gorillaz and The Hives will also be performing.
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