Looking purely at the charts, “What Was I Made For?” isn’t the biggest hit of Billie Eilish’s career. It managed a peak at No. 14 on the Billboard Hot 100 chart, which is great, but not as good her as the chart-topping “Bad Guy” or the No. 2 hit “Therefore I Am.” It’s certainly one of the best-received songs Eilish has released so far, though, and the response to her and Finneas’ performance of the Barbie favorite at the 2024 Academy Awards was proof of that.