An inspirational cover of an Eminem song posted on YouTube has made a 12-year-old boy an internet star.

Sparsh Shah's Indian-infused version of "Not Afraid" has been viewed more than 12 million times and has won praise from famous R&B singers and Bollywood celebrities.

The youngster, from New Jersey in the US, has a brittle bone disease which means he suffers frequent fractures and has to use a wheelchair.