Today legendary Indian playback singer SP Balalsubrahmanyam passed away at age 74 as he was tested positive for coronavirus. Although he had recovered from the deadly COVID-19virus, SPB’s health had been critical ever since until he breathed his last today at a hospital in Chennai. While the entire nation continues to struggle to come in terms with SPB’s demise, Shah Rukh Khan took to Twitter to mourn the loss of BalaSubrahmanyam.