New Delhi: Popular playback singer S.P. Balasubrahmanyam, who was tested positive for coronavirus, is currently on life support, and his condition is critical, said hospital authorities on Friday.He's currently admitted at Chennai's MGM Healthcare."In a late night development on 13 August, his condition had deteriorated and based on the advice of the expert medical team attending to him, he has been moved to the ICU and he is on life support and his condition remains critical," the hospital said in a statement.On August 5, the musician confirmed testing positive for COVID-19 with 'mild' symptoms through a video message posted on his official Facebook page.In the video, the singer detailed about having a little "discomfort" for two days,.