In July 2007, Prince gave away copies of his album Planet Earth for free in the UK newspaper The Mail on Sunday. It didn’t seem like a good marketing move until he announced 21 consecutive London concert dates and sold out all of them.

In July 2007, Prince gave away copies of his album Planet Earth for free in the UK newspaper The Mail on Sunday. It didn’t seem like a good marketing move until he announced 21 consecutive London concert dates and sold out all of them.