A man (looking way more mature than his 21 years) in a red tracksuit has gathered a bunch of mates in the park. Out of view is a boombox playing a beat. The man starts rapping. Occasionally his friends pitch in. That’s it, that’s the entire concept of Stormzy’s ‘Shut Up’ video. It is all you need, as well, because the South London MC is that compelling a performer. The 2014 MOBO Award winner (best grime act) is, simply, one of the brightest of this new generation. He can sing, too.