Britney spears new song 2017

Britney Spears released a new song in 2017 called "Slumber Party" featuring Tinashe. It was released on November 16, 2016, but it was also included on her ninth studio album "Glory", which was released on August 26, 2016.

However, if you're looking for a new song released in 2017, Britney Spears did not release a new single in 2017. Her last single was "Slumber Party" in 2016, and she has not released a new single since then.

But, in 2018, Britney Spears released a new single called "Dancing" featuring Nicki Minaj, which was included on her album "Britney: The Singles Collection".