My Iphone has other people's music on it?

I recently added music to my iphone and i after updating to the IOS 7, I get my sister's music too. We don't share the same computer or even the same icloud. The only thing we have in common is our apple ID. I connected my phone to my computer to delete her songs but they do not show up in my library, just on my actual phone. I don't know how to get rid of her songs. Does anybody know how to fix this?

Can i buy iphone 5s from USA if i live in Saudi Arabia?

I want to buy an iphone 5s from US because here in saudi arabia the price is way crazy, i have a bank account in el ahli bank and a working master card so can i place an order using it or not, and if i can't use it, then what other options do i have, that will enable me to buy it from US.

PS. I want to buy the unlocked version of the phone and i heard something about the frequency that the phone use in US is different than other countries, if this is how can i find out if the frequency here is the same or different than the frequency in US, and shipping is no problem for me, i will make apple ship it to a US address like Aramex shop and ship and then they will send it to me.

I don't have camera filters on my iphone 4s and i have the ios 7?

On my iphone 4s i don't have came4ra filters on my camera1 everyone else has them but i don't! I tried restarting my phone, closing the app, and i even have the ios 7! Someoine tell me why its jnot there or tell me how to get it please? Any help is APPRECIATED!

When can I take my iPhone 4S out of rice?

I've already searched answers but nothing seemed to match up. Last night, I dropped my phone in my bath for like two seconds (changing songs). And as soon as it fell, I grabbed it, and ran to my room. I always drop my apple products into water but I usually only shake out the water (it still works after that) but I don't want to run ANY risk with my phone. It's been in there for around 11 1/2 hours, when am I safe to take it out and put it back on the charger?

What are the drawbacks of a gevey sim unlocked iphone 4s?

I have never used an apple phone ever. I can't afford to buy the factory unlocked iphone so i was thinking to buy the gevey unlocked one. Can someone please tell me the drawbacks and answer these questions in simple language?

does the gevey unlocked work like a jailbreak or a factory unlocked?
can i download apps directly from the apple store and save music on itunes?
is it legal to gevey unlock an iphone?
is the iphone 4s a good option to choose over the s3(just sold it, i didn't like it)?
Some people say gevey unlocked iphones don't get full network signal bars, will i have to face problems in messaging and calling?

Has my old iphone been erased?

So i had an iphone 4s that decided not to turn on anymore, was completely broke and managed to get an early upgrade. I'm not an expert so wasn't aware i could erase my stuff from a pc. I have icloud and signed in on my new iphone with the same email, and put my stuff on that phone.

has it been erased from my old phone which doesn't turn on? I can't tell obviously as it doesn't turn on and yes i tried everything, think its a problem with the motherboard.

my icloud, only detects one phone (new one) when i go on find my iphone.

i'm asking as i want to return my old iphone to the shop for a discount on what i owe o2 but want all my stuff removed as i had personal info/

so will it still be on there or not?