It’s not enough to admit that Chuck Berry invented rock and roll music. There has long been rock, there have been novel songs. And as long as there have been novel songs, there have been songs about the genitals. Of course, Berry’s song is related to the inn – it’s supposed to be about bells, not your bells – but it’s still a legend. Chuck Berry walks so Andy Samberg and Justin Timberlake can stuff food in boxes.