YouTube says its paid the music industry $1bn (£794m) in royalties this year. But that's still not enough according to record companies. They say YouTube does not pay a fair rate to musicians and record labels, and is slow to police illegal and pirated material uploaded by its users. Nine of the 10 most-watched clips on YouTube are music videos, topped by Psy's "Gangnam Style." James Brydges has been finding out more from music law expert Elliot Chalmers.
For fans of Rock and Roll, August 16th marks a significant day. On this day in 1977 the world learned of the news that Elvis Presley had died.
Despite his passing, his music career hasn't ground to a halt. According to Forbes, the Presley estate earned an estimated $55million in 2015.
So just how successful has his posthumous career been? Joe Aldridge investigates.