Can you download a mp3 song on an iphone?

I want kingdom hearts FULL music on my iphone, but they don't have what i want in itunes store. Can you download mp3 downloads onto an iphone? I don't have an mp3 so i don't mean transfer from one to the other. If there's a way to make mp3 music downloads capable with the iphone 5 please help!

How to get HQ zoom on saved photos?

How to get HQ zoomed in photos on pictures you already have saved?
I have a saved photo and I want to zoom in on a part and make it in HQ or nice enough to see well btw it's an iphone picture how can I do this because regular zooming makes it bad quality and you can't make it out like zoom zoom zoom in on the picture then like the pixels 'magically' become HQ or at least good

Cummuter or defender otter box case?

I'm a 13 year old girl with a iphone 5c. I can have it crack and honestly I drop it a lot and when I had an iPod me and my friends would play catch with them. I can't have my phone crack. I don't want every time I drop it I'm gonna get nervous it cracked. I don't like super bulky cases though. What's the difference between the two and what one should I get?

My iphone turned off and won't turn back on? How to fix it?

My iphone 3gs had around 95% battery and it just shut down while I was using it. My power button broke a few months ago which wasn't that big a deal because I could just turn the phone on by charging it.

However, now it shut down and when I plug it in it only shows the apple logo then shuts down again.

I don't think the problem is the cable cause I've tried three different cables of my own and one that belongs to my friend and they all had the same end result.

What could be the problem here and how can I fix it?

I live in Brazil and here it's pretty expensive to take to an apple store or something. I don't have the money for that, so if there's something I could do myself then please enlighten me.

Dropped my iPhone 4s in the snow

Earlier today I dropped my iphone in snow for literally 5 secs. I picked it up wiped all the snow off ran inside wiped it down and dryed it with a towel and played a song and noticed the speakers wern't loud and were muffled. I plugged it in the charger stupidly for 5 mins before my dad told me it could fry the circuts if still wet. I turned it off and put in rice. An hour later it turned on randomly and vibrated and the sound didn't work at all. I put it back in the rice hoping for the best. Now 5 hours later I checked and the sound is back to normal the speaker is loud but it still won't turn off. It turns right back on. It also seems like the battery is dying faster? Do you think the phone will be fine? Everything is working except turning off like I said? Did it fry? Anything else I can do?

How come my iPhone 5C won't give or receive text messages and calls?

I just got my iPhone 5C unlocked today at a T-mobile store. When I came home, I tried texting and calling my friends but it wouldn't work. When I checked the top left corner of my phone's screen, it said "No service". Will the service come eventually or should I go back to the store and have them fix it?