"Treat You Better" is a song by Canadian singer-songwriter Shawn Mendes, released through Island Records on June 3, 2016, as the lead single from his second studio album, Illuminate (2016).

[9] The music video also stars Devon Aoki's half sister Ellie Stuart Hunter [10] played with a guitar, drums and tambourines.

In Canada, the song has peaked at number seven on the Canadian Hot 100, passing "Life of the Party" as his highest-peaking single in his home country.

The song has additionally achieved a top 5 position on the national CHR and Hot AC airplay charts, and has been certified gold by Music Canada.

[16] On July 12, 2016, he performed the song on The Tonight Show,[17] and again on October 8, 2018, with Jimmy Fallon and his house band The Roots as backing using "classroom instruments".