The singer Griff said she was "unbelievably grateful" to be chosen as a support act for Taylor Swift at Wembley.
The 23-year-old, from Kings Langley in Hertfordshire, will be joining the US popstar at Wembley arena on 22 June.
Paramore, Mette and Benson Boone have also been announced as support acts.
Griff said: "Eight-year-old me who had Fearless on repeat wouldn't believe this."
Taking to X, formerly known as Twitter, she said: "TAYLOR SWIFT HAS INVITED ME ON THE ERAS TOUR!
"So unbelievably grateful to Taylor for all the love she’s shown me and my music. See you at Wembley on June 22nd."
Griff, who had her first recording session aged 10, released her first single Mirror Talk in July 2019, two weeks after finishing her A-Levels.
She was named as the winner of the Brit Awards' Rising Star prize in 2021, following in the footsteps of Adele, Celeste and Jorja Smith.
Speaking to the BBC in 2021, she said listening to Swift helped her realise she "loved pop music".
"It was such a contrast to all the stuff I'd been brought up on.
"The pop sensibility, and the fact she was singing about teenage stuff: It was my first memory of realising I loved pop music."
She recently played at Radio 1's Big Weekend held in Luton, with her debut album, Vertigo, due to launch in July.
Swift will be playing venues across the United Kingdom in Edinburgh, Liverpool, Cardiff and London.
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