Coachella has already had some weird flubs this year, including Kacey Musgrave's audience not getting how call and response works. But that one was crowd-related. Today's best slip up so far comes from Billie Eilish, the first person born after the year 2000 to hold number one on the Billboard 100 and the absolute master of deadpan, disaffected coolness.

During her performance of the song "all good girls go to hell," Eilish lost track of where she was in the song and exactly what lyrics came next. A more self-conscious singer might fake her way through it, maybe vamp or try to work the crowd until she knew where she was supposed to be, words-wise. Instead, Eilish audibly mumbles, doing the kind of vowel-matching you do when you know the gust of a song but not exactly the words. Rather than play it off, she looks over her shoulder and loudly asks, "What the fuck are the words though?"

It begs the question: Does it count as a screw up if it's 100 percent on brand?