"Ain't My Fault" is a song by Swedish singer Zara Larsson from her second studio album So Good (2017). It was released on 2 September 2016 through TEN Music Group and Epic Records as the third single from the album. The song received positive reviews from critics upon its release and peaked at number one in Sweden, the top ten in Norway and Romania, and the top 20 in ten additional countries. It is certified Gold or higher in sixteen countries. The remix version of the song features American rapper Lil Yachty.