Watch Charli XCX debut a new song and perform ‘Shake It Off’ with Taylor Swift and Camila Cabello

To kick off Taylor Swift‘s Reputation Tour she was joined by Charli XCX and Camila Cabello for a rendition of her track ‘Shake It Off‘.

The show took place at the Glendale in Arizona and also saw Charli XCX perform a brand new track during her opening set. It is reportedly called ‘5 In The Morning‘ and she told the crowd: “This is a brand new song. I’ve never played it before, ever.

Check out footage of both below.

Last year the Charli dropped two new mixtapes called Number 1 Angel and Pop 2. Taylor Swift‘s record-breaking album, Reputation, came out in November of last year.