What is some good music to get off itunes?

I need some new music to listen to and I listen to it off of my Iphone and my Ipod. I listen to Owl City and I like songs like Radioactive, Safe and Sound by Capital Cities so I'd like songs like pop or electronica or new age to listen to. But I don't want it to have any cuss words or inappropriate stuff.

By the way I'm only 12 so yeah. I want it to not have any cuss words or inappropriate stuff but I don't want it to be some stupid song either.

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Slayer!
Albums
1.Show No mercy
2.haunting the chapel
3.hell awaits
4.reign in blood
5.south of heaven

Matthew Johnston- Explosions in the sky
passion pit- take a walk, carried away
foster the people- There whole first album but particularly call it what you want, Houdini, Helena beat
avicii- levels
bastille- things we lost in the fire, flaws, of the night
MIKA
just some stuff I have listened to in the past day i don't know