Watch: Taylor Swift, Camila Cabello & Charli XCX perform 'Shake It Off' together live.

Taylor Swift kicked off her Reputation World Tour in Glendale, Arizona tonight, inviting her support acts, Camila Cabello and Charli XCX, to join her on-stage to perform 'Shake It Off' together.

Watch some fan-filmed clips of the performance below...

.@charli_xcx and @Camila_Cabello join @taylorswift13 on stage to perform Shake It Off! #RepTourGlendale #TaylorSwift #ReputationStadiumTour pic.twitter.com/zXyBhpZUpa
— Xposé (@TV3Xpose) May 9, 2018

.@taylorswift13 @Camila_Cabello & @charli_xcx on stage together in Phoenix! #ReputationStadiumTour (@GaryC30) pic.twitter.com/rkv6s1uCQE
— MCD Productions (@mcd_productions) May 9, 2018

Camila and Charli singing Shake It Off with Taylor! ( @lukasperry) #repTourGlendale pic.twitter.com/dAfx38ZWcX
— Taylor Swift News (@TSwiftNZ) May 9, 2018

we are officially shook cc: @Camila_Cabellothank u @taylorswift13 for tonight it was magic pic.twitter.com/FcmF7nx4LQ
— CHARLI XCX (@charli_xcx) May 9, 2018

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