It's false advertising, isn't it? Those commercials for Samsung and Magna Carta Holy Grail that show Jay working with Pharrell, Swizz Beats, Timberland and, ostensibly, Rick Rubin, to create a new masterpiece. Well, it turns out that Rubin did not in fact produce any of the music on the album. What's he doing in the commercials then? What was he doing in the studio that day? Just hanging out, I guess. Just thinking 'bout stuff.