Nikki Glaser joined American Idol as a guest judge on Monday night (April 27), and some viewers swear there was tension between the comedian and regular judge Carrie Underwood.

Glaser, a self-confessed Swiftie, joined the judging panel for Taylor Swift Night, in which the Top 7 contestants performed two songs, a Swift track and then a second song from an artist of their choice. While the Golden Globes host appeared to be having fun on the show, many fans felt there was some awkwardness between Glaser and Underwood.

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