Can you change the song info on an iPhone?

I synced my music from my pc to my iPhone, so I didn't buy the music from iTunes and some of the songs' artists and album covers are screwed up and I can't seem to find a way to change them

My iPhone 5c screen doesn't work but the phone still does, what should I do?

I recently got an iPhone 5c about three weeks ago. A few days ago I left it on top of my car on accident and drove away, the phone fell on the road and got cracked badly. However when I plugged it in the charger it started making its regular noises as if it still works. However I can't see anything on the screen, I can also hear people texting me. Does anyone know what I should do? Should I try to get the screen replaced, is there a warranty on it that allows me to get a new one, or should I just try to get a new phone? Or any other ideas?

Use my early upgrade or wait for the iPhone 6?

I got my first iPhone 5 in 2012 (Sept.22) in 2013 I switched to Sprint from Verizon and my Mom got me another iPhone 5 even though the iPhone 5s was going to be announced in 2 weeks. By the time the 5s went on sale it was too late to return the phone. Fast forward to 2014 (July) and I still have my iPhone 5 but now my carrier (Sprint) is offering me an iPhone 5s upgrade for $150 and they'll pay up to $650 in service credits for the monthly payments. So should I take the offer? I want either the iPhone 6 (bigger screen is a MUST) or the Note 4. I might just buy the 6 when it comes out and swap the phones around on my account. (My sister wants to upgrade from her 4s)

How to downlad free music on itunes?

I have just got my laptop and want to get some music on my new iphone 5s. However, this is the first iphone i have ever had or the first out of any apple products - i usually have android. Anyway, i love listening to music well who doesn't haha? I can't seem to find any free music or any ways to get free music as i'm not paying for songs. Any advice is greaty appreciated. Thank you so much in advance.
Have a good summer.

Do i need an adapter to charge my iphone 5 in china?

I bought my iphone in america and am using the outlet charger normally without an adapter despite the voltage difference between the two countries. My phone is charging normally and nothing else has happened so far. Do i need any form of adapter/converter for my iphone?

How to reset an iPhone 4s that won't turn on due to a hardware issue?

I tried the hard reset thing where you hold the home button and the power button at the same time and it doesn't work. I think the LCD screen is bad.

My iPhone 4s gets warm when charging, and vibrates every 5 seconds or so when charging but it will not turn on. I just want to remove my icloud account, reset my settings to factory settings, and sell it. But when i plug it into the computer and open iturnes, it says "iTunes could not connect to my iPhone because this computer has not been trusted by the iPhone."

Please tell me there's a way around this without bringing the phone into apple.

Can i take the back off of my iphone and put it in rice?

I dropped my iphone in the toilet yesterday. I'm pretty sure its done for but to be sure i want to leave it in rice as long as possible. And see if it works again.
Is it okay to take the back off and put it in rice. Or will it get in little parts of the phone and cause further damage?