This week, Tom Petty earned royalties from Sam Smith’s song Stay with Me after providing a convincing argument that Smith’s hit borrows a little too liberally from his own I Won’t Back Down. In Pacific Standard, J. Wesley Judd argues that the case doesn’t necessarily suggest that Sam Smith and his co-writer did it on purpose. “There is, as it turns out, a known phenomenon, called cryptomnesia, where previously stored memories present themselves as original creations.” (The other name for this is Twitter.)

+ Have a listen to a mashup of the two songs and see what you think.

+ Jay-Z just spent $56 million on a Spotify competitor.