Pink Floyd is undoubtedly one of the most successful acts in rock history.
The band's breakthrough album, 1973's Dark Side of the Moon spent a record 741 weeks in the US top 200 - and their next four releases all went platinum.
But at the launch of a new Pink Floyd exhibition in London, former frontman Roger Waters said no one would buy their albums if they were starting out now.
"Most people listen to most of their music on their phone, and most of it is streamed, and they will listen to one track," he says.
He says Pink Floyd's concept albums would be "inconvenient" for music streaming services to provide to listeners.
Waters also said that the themes in albums like The Wall continued to be relevant as politicians tried to demonise Mexicans and the Chinese.