Having not released new music since last year's "1999" with Troye Sivan, Charli XCX has shared a new image with a caption teasing a possible release of "Taxi", "imagine if I officially released taxi.... you guys would officially have nothing left to say to me."

"Taxi" was originally debuted live in 2016, and reportedly credits SOPHIE as producer.

A couple of weeks ago Charli XCX was credited as a composer on TWICE's "Girls Like Us" track, alongside MNEK.

There's no release date of "Taxi" just yet. Charli XCX plays Primavera Sound next month. Find out more.