Holy shit how have I never shilled Celldweller in here?!
For those who don't know him by name, you've heard him, guaranteed. The number of movies, video games, TV shows, etc. that have licensed his music goes on forever. Dude is omnipresent. He's also arguably one of the best music composers alive today. His music is a mix of nu metal, industrial, orchestral, drum-and-bass, dubstep, you name it. If the man can make it with a computer and a music studio, he'll fuckin' do it.
Early in his career, his sound was pretty simple. Electronic nu metal. Here's one of his more famous tracks from early on. Chances are you've heard it somewhere.
But even if you just couldn't fuck with nu metal it doesn't matter. Celldweller's just that good. As he began evolving and expanding his sound, trying to define his music with one genre became a fool's errand. Wish Upon A Blackstar is still one of my favorite albums of all time for just how varied it is, the interesting composition of every song, and just how much it fucking slaps.
You can hear the impeccable attention to detail in the production and composition of his later work. Not a simplistic, copy and paste loop to be found. Sounds and instruments hitting at just the right moment. And his music only continues to evolve.
Celldweller is just one musical project by the artist Klayton. While Celldweller is the electro-metal portion of his work, he does other styles of music under other aliases. But I'm not gonna turn this into a full-blown article going over those. Look up Scandroid, or Circle of Dust, if you want more of Klayton's impeccable artistry with some other sounds.