Pop icon Charli XCX has unveiled her newest single, “Out of My Head,” featuring Swedish singer-songwriter Tov Lo and Finnish artist Alma. The track will be on her upcoming mixtape titled Pop2, which is set to be released December 15.

Pop2 is the second mixtape Charli XCX will release this year and the fourth installment in her series. This comes after her third mixtape, Number 1 Angelwhich came out in March 2017. Pop2 features an incredible lineup of writers and collaborators including Chairlift, MØ, Carly Rae Jepsen, Pabllo Vittar, Jay Par, and more.

Charli XCX released her single “Boys” over the summer, which has been streamed over 120 million times. She is also recently wrapped an arena US tour with Halsey and an Australian tour with Sia.

You can learn more about Charli XCX’s music on her website.