What do you get when you put two of the biggest names in music together on stage? A noteworthy performance that websites write about after the fact, that's what.
Case in point: Madonna was slated to sing "Ghosttown" at Sunday's iHeartRadio Music Awards, but in a surprise wait-what's-happening twist, Taylor Swift joined her. It had clearly been rehearsed, and so was only a surprise to us mere mortals watching the show, but it was epic nonetheless.
The two ended the performance with kisses on the cheek, and it's like we all heard T-Swift's Illuminati Friendship Circle expand.
Watch the performance here:
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![](https://hips.hearstapps.com/hmg-prod.s3.amazonaws.com/images/gettyimages-1163709602.jpg?crop=1.00xw:0.460xh;0,0.209xh&resize=480:* "Sony Pictures' "Once Upon A Time...In Hollywood" Los Angeles Premiere - Red Carpet")
