Last Friday (25 January) Petras posted a date - 7 February - with a star emoji, and let fans speculate over two days before revealing what will be landing that day.
On Twitter, the "All the Time" singer revealed, "Yes it’ll b the Sophie collab but also more".
Yes it’ll b the Sophie collab but also more— Kim Petras (@kimpetras) January 27, 2019
The German singer/songwriter has been linked with SOPHIE in the past, having appeared at Brooklyn's LadyLand Festival last summer, where fan footage emerged of the duo performing Kim Petras' "We Don't Stop", which features production from SOPHIE.
SOPHIE revealed to Dazed back in July 2018 that she had been making music with Petras.