by Kristen HarrisBuzzFeedBuzzFeed StaffAs a staff writer at BuzzFeed, I write about all things celeb and pop culture. You might've shaded your ex by posting a specific Taylor Swift song to your Instagram story, but some singers aren't afraid to be petty in front of an arena full of people. Here are 14 times singers threw shade mid-performance: 1. Lily Allen and David Harbour separated in 2025 after five years of marriage.