Other acts added to the bill include Connie Constance, Mathilda Homer and CC Honeymoon.
The show takes place in central London on Saturday 13th July and tickets are on sale now.
The event’s other dates this summer are headlined by Robbie Williams, Celine Dion, and Barbra Streisand.
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And all proceeds will go to Intensive Care Society COVID-19 Fund.
An Easter bank holiday knees up, live from your living room.
The new four-track record will contain reworking of tracks from her debut album ‘Compliments Please’.
The Murder Capital and Disq will also play our third show of the festival.