“New Rules” is about moving on from an ex and how you need to stay away from them. The narrator needs to treat themselves like they would a friend with their own advice.

The music video premiered on July 7, 2017. After seeing covers of the song and recreations, Dua Lipa was inspired to release a new video with a compilation of the covers. At the end, she expressed her gratitude:

Thank you so much for being a massive part of ‘#DuasNewRules.’ It feels like yesterday I was uploading covers on YouTube, and now to have all of you guys covering me is absolutely everything. You guys are the best.

“New Rules” became Dua Lipa’s first number one single in the United Kingdom and Ireland.

“New Rules” peaked at #6 on Billboard’s Hot 100 Chart, marking Dua Lipa’s first top-10 hit in America. On July 3rd, 2018, “New Rules” ended it’s 48 week run on the Billboard Hot 100, making it her first single to spend the most weeks on the Hot 100.