Yungblud, 22, did not hide his admiration for Halsey’s dance moves! On April 20, the rocker (and Halsey’s ex-boyfriend) left a very flirty comment underneath a video of Halsey sashaying and twerking to Kehlani’s new song “Toxic.” Although no words were used, the emojis that Yungblud left — red panting faces — said it all. Yungblud could feel the heat from his ex’s dancing skills!