This is Jack Robbins, a young 8-year-old boy with severe autism from Texas. Jack was diagnosed with autism aged 2 and has only ever been able to utter single words.
However, earlier this month, Jack's family noticed that he had been saying the same few words which they thought was just random mumbling. It took them nearly a month to realise that Jack was actually singing Katy Perry's Roar.
Jack up to this point was just using random sounds to sing or words so this a huge achievement.
http://www.youtube.com/watch?v=4V5wqJLw60I
