There comes a point, about half way through Justin Bieber’s sixth studio album Justice, where you might wonder what’s happening here. And strangely, it comes on the song that isn’t a song, MLK Interlude, which is instead an excerpt from a 1967 sermon given by Martin Luter King. “You died when you refused to stand up for right. You died when you refused to stand up for truth. You died when you refused to stand up for justice.” It’s incredibly powerful, but what’s it doing here, on an album from a pop star whose last album Changes was preceded by the single Yummy? A song so shallow it’s chorus went “Yeah, you got that yummy-yum / That yummy-yum, that yummy-yummy.”