I've decided I'm going to recommend some music right now!
First off, I would like to suggest the OCEANA discography. Everything from "The Tide" to "Clean Head EP"
All three of their albums are fantastic in their own unique ways.
"The Tide" was their debut album, released as they were all 18 and 19. It is a fantastic metalcore album with great screaming, and beautiful singing. The Instrumentalism is also fantastic!
Their Sophmore album, "BIRTH.EATER" is easily the best concept album I've ever heard. They switch to a lighter, post-hardcore scene. The words they sing however, are very heavy. The entire album is about abortion. They talk from the not-yet-born infant, and the mother. They talk through the emotions of the child, and what the mother goes through.
In their latest EP: "Clean Head" they switch to a more indie sound. It's great album to listen to when you just want to chill-out. It's an album, that I'm sure all of my friends wouldn't mind listening to.
Next, I would like to talk about HeyHiHello! As you may be able to tell from their name, they're a pop band. They use a lot of electronic sounds, and fun lyrics. Very fun to listen to when you want to feel like people in a music video.
The Postal Service. They'll lower your heart rate down to 20. They're very good, but very slow. Exceptionally good for chill-out, and a great electronic/indie band.
I'll leave at that, before I blurt out everything in my metal dominated iTunes.