If an artist is signed to a label then it's on the label to have a working relationship with the online stores and streaming services.
This is sort of like a programmer who made it big in an IPO becoming a venture capitalist for software tech companies: I'm sure that has happened before.
I can't speak for the others, but both Jay Z & Kanye are very heavy into promoting new artists.
Jay essentially created two of the men standing up there (J Cole & Kanye), and Kanye has been instrumental in pushing Big Sean, Kid Cudi, Pusha T, and Chief Keef among others into the limelight.
They, along with birdman & lil wayne are the biggest promoters of new artists in the rap game.
An actual artist-owned platform (a co-operative model where artists = shareholders) would actually be pretty awesome.
I think the problem with an artist-owned platform is that I actually want the platform to be agnostic in terms of what is actually surfaced. When I open Rdio, I can see what's popular amongst everyone, my network, or just me. I don't want that to be affected by the owners also being the product.
What really concerns me is the double-talk.
> “I just want to be an alternative,” Jay Z said. “They don’t have to lose for me to win.”
But the strategy is clearly going to be largely based on exclusive content. This doesn't mean Rdio and spotify lose, it means the fans lose because they have to spend the time and energy they would normally put into enjoying music towards weighing the different streaming options.
I guess Jay said it best: "I'm not a businessman, I'm a business, man." That's the artist that owns this "artist-owned" platform.
I think he meant, "This is a platform owned by established, rich, and ageing artists, whose resolve to assist up-and-comers should rightfully be questioned."
Not to say this can be any worse then something like Spotify, which already trounces over the independents, but I hardly think this is a likely group to bring democracy and creativity back to the musical scene.