Rammstein rocker Till Lindemann is reportedly in a stable condition in hospital after suffering from a serious case of coronavirus.The German heavy metal star, 57, recently tested positive for COVID-19 after returning from a March 15 show in Moscow, Russia.According to local newspaper Bild, Lindemann was admitted to a Berlin medical facility for flu-like symptoms, including a high fever, and he subsequently developed pneumonia and was treated in the intensive care unit.He is now in recovery, listed in a stable condition, and is under quarantine.Lindemann’s representative has yet to comment on the news.