Hollywood star Robert Downey Jr. is convinced his 14-year-old son Indio is going to be a world famous rock star.

The teenager, from his first marriage to Deborah Falconer, has taken up the guitar and is proving to be an immensely talented musician.

And Downey Jr. can see Indio becoming a superstar when he grows up.

He says, "I think Indio is one of the most talented guitarists in Los Angeles at the moment."