Last night, just as SNL was imagining a horrifying post-apocalyptic future ruled by Taylor Swift and her squad, that same squad gained another prominent member. At her show in Toronto, Taylor please welcomed Charli XCX to the stage after a gushing introduction to perform “Boom Clap.” Watch below via fan-footage.

BOOM. CLAP. @charli_xcx just killed it in Toronto!!!

A video posted by Taylor Swift (@taylorswift) on Oct 3, 2015 at 7:48pm PDT

thank u so much for having me in Toronto tonight @taylorswift13 it was fuuuun 💕🇨🇦

— CHARLI XCX (@charli_xcx) October 4, 2015

ps the outfits on the 1989 tour are cute as fuuuuuck cc: @taylorswift13

— CHARLI XCX (@charli_xcx) October 4, 2015