The dress was inspired by Swift's song ‘But Daddy I Love Him’
Prince William celebrated his 42nd birthday at an 'Eras' concert at Wembley this past weekend
The singer and NFL player have been romantically linked since last year
Cabello says she's been a fan of Swift since she was 13
He topped the list for the seventh time in nine years
"You have an incredible show," Grant wrote on social media after attending one of her Wembley shows this past weekend
The VIP tent was packed with famous faces
Swift wrapped up her final show at Wembley Stadium last night
The pair were spotted at night three of the singer's Wembley takeover
Other famous guests included Jon Bon Jovi, Cate Blanchett, Ellie Goulding and more