New trailers for the animated movie Despicable Me 4 feature hit songs from rock legends Guns N’ Roses and power metal icons DragonForce. To hear a massive GN’R track in a movie trailer — even one intended for a child audience — is not all that surprising. They’re one of the biggest musical acts on the planet and they transcend rock as one of our greatest mainstream exports. But power metal, unfortunately, is not quite as popular, so even though it’s the genre’s biggest hit, a DragonForce song was quite unexpected. The fact that the Despicable Me 4 trailer that features the Inhuman Rampage and …