Turns out Blake Lively's bronde hair was a total accident — here's why

When Blake Lively stepped out with bronde hair in the summer of 2015, it instantly set the internet on fire.

So much so, that bronde is already considered one of the top hair color trends of 2017.

This barely brown, not quite blond hue has become a favorite among celebrities like Chrissy Teigen and Hailey Baldwin.

But it turns out, Lively might have started the whole beauty trend by accident.