Well, it seems this big sis wasn't having any of it!
Koko took to Twitter on Monday with a very cryptic message about all the "sh*t", writing:
[Image via Instagram.]
Because on Saturday night the Bad Blood hitmaker had another award-winning cameo on her 1989 World Tour!
During the Atlanta, Georgia leg of Tay's tour, the 25-year-old brought rising star Tove Lo to the stage to perform her hit Talking Body together!
And, of course, they absolutely SLAYED, and the audience went crazy!
Swifty posted a clip of the performance on her Instagram, and we're all about those super jazzy hand movements to accompany Tove Lo's sultry voice!
"Now if we're talkin body, you got a perfect one"A video posted by Taylor Swift (@taylorswift) on Oct 24, 2015 at 11:09pm PDT
@tovelo takes a bow 👏👏👏👏A video posted by Taylor Swift (@taylorswift) on Oct 24, 2015 at 11:14pm PDT
Awww look how happy she was to perform! We love it!
[Image via Tove Lo/Instagram.]