"Treacherous" is a country pop song by the American singer-songwriter Taylor Swift. It was released on October 22, 2012, in the US by Big Machine Records from her fourth studio album, Red (2012). It is the third song on the album, and was written by Swift and Dan Wilson, and produced by Wilson.
"Treacherous" was critically acclaimed by music critics, who complimented Swift for her songwriting, comparing the song to her work on Speak Now. Billboard gave the song a positive review, saying that the song had a "hushed, confessional beauty [in] the verses," though also noting that rising guitars and percussion at the end of the song broke the earlier tone.About.com also gave the song a very positive review, giving the song a rating of four out of five stars.Idolator praised Swift's vocals, saying that they were "rising to a threatening power."
Upon the release of Red, the song peaked at number 102 and 65 respectively in the US and Canada. It also reached number 26 on the US Country songs chart.