Taylor Swift is headlining one of the BST Hyde Park days.
Performing at the London park event on Saturday 11th July, she joins fellow bill-toppers Little Mix (Saturday 4th July) and Pearl Jam (Friday 10th July). Tickets go on general sale on Friday 6th December at 9am.
Taylor's playing loads of festivals next summer in support of her latest album 'Lover', including Werchter in Belgium, Oslo Sommertid in Norway, Roskilde in Denmark, Open'er in Poland, and Mad Cool in Spain.
She's heavily rumoured for Glastonbury, too.