As celebrities walked the red carpet at the Grammy Awards this week, one later made a surprise public appearance on stage after a significant health scare in 2015. Fans were delighted. In a touching moment, Joni Mitchell, the iconic singer-songwriter, made a surprise appearance at the Grammy Awards, leaving fans both shocked and moved. At 80, Mitchell’s presence was a poignant reminder of her enduring musical legacy, especially years after facing a life-threatening brain aneurysm. Mitchell, mother to one daughter, has now clinched her 10th Grammy, winning Best Folk Album, took to Instagram to …