Tomomi Kasai brought Misa Amane's look and persona to life like no-one ever has before. Give or take the shinigami eyes, second Death Note and murderous predilection, the girl band JPop sensation practically IS Misa.
Death Note: Hollywood’s Second Chance at Adapting Anime in 2017
When I think of anime opening songs, I think of them like a peom of what is to come showing random scenes that you don't understand or put together until later. Also sometimes the musics meaning goes along with the theme.