How to mix vocals over a beat?

How do I mix vocals over a beat? I would appreciate step by step instructions from the very beginning. I don't even know what I would have to download to do this. If possible is there any way I could do this with an iPhone?

When/where should I buy iPhone?

I'm trying to buy an iPhone. This is the first time I will have a smart phone plan in my life, so I don't know much. Verizon is the only provider which works in our area. When/where should I buy iPhone to get the best deal? Should I wait till Black Friday? If I have 2 year contract, do I get a better deal?

I found my long lost identical twin? I think?

So I'm a 12 year old boy in the UK and I was about to enter co op to buy some sweets and right next to me, a person walked out of the store looking exactly like me, he was looking at his iPhone 5s, and I have the same freakin phone, what the f'ck? He didn't notice me but as I was about to buy the sweets, the cashier guy asked me: back again Kyle? I responded I'm not Kyle, I'm Dan. He looked really freaked out, I'm just shocked. But I got a good look at him and he looked exactly like me, same face shape, same face, no difference except the clothes and hair. So I looked up his name on Facebook and I found him: Kyle smith. I'm Dan smith, what in hell? I need advice, is he my twin or something? Were we separated at birth? I need serious advice, tonight I'll try and talk to him through Facebook, in the meanwhile, some advice would help.

Are the Iphone 6 or 6 plus good phones?

I have been an LG android user for the past few years now and i have come to the conclusion that LG sucks basically well that and it's time for me to join the Iphone world. I'm looking to get an IPhone 6 plus due to the face it's bigger than the phone i have now. I currently have an LG Intuition which sucks. The phone has a 4 hour battery life and it locks up every not and then. Sometimes even the keyboard can cut itself off and even delay typing which means you can type a text message and the letters on the touch screen will not move or react until about a few seconds after you typed the word. I have had this problem with ever LG phone i've had.