The English girl's mother, Leila, told the Telegraph, "I climbed into her hospital bed to give her a cuddle - she was wired up to machines and unresponsive - and Adele came on the radio. I started singing it to her because she loves her and we used to sing that song together.
"Charlotte started smiling and I couldn't believe it. It was the first time she had reacted to anything since the haemorrhage. The nurses were astounded and told me to keep singing, and she smiled again. The nurses said it was like I 'unlocked her' and from that day she started getting better and better."
Since the April incident, Charlotte has regained partial eyesight and is learning again how to walk and talk.