How to down load a file from my computer to my IPhone?

I got this free song, and it's on my computer. I really want it on my phone, but I don't know how to download it.

Drag the music file to iTunes. The selected song will appear in music

Depends on the type of file, if its something you can put into iTunes, it can go on any apple product. If it doesn't fit into your iTunes try to convert it to something that can.

  • Wil my iPhone get heevier wen i down load mor philes on it? So i down loaded a game yestrdey and my iphone seamed heevier now? Please healp me Nice answer, Kale, LOL! But that is a comment answer to this troll question, you should make up something else. Common*
  • When you load an mp3 to iTunes, do you still need the original file? I download my music through other music downloading sites/stores and I only use iTunes to organize them and get the music to my iPhone. When I download these mp3's they are stored in my iMac's Downloads folder and I have a ton of music in that file. Do I still need these mp3's or can I delete the ones just floating around in my Downloads folder?
  • My Iphone won't let me down load a song from iTunes? I tried to buy Taylor Swift's new single, but my Iphone 5 won't download it. It keeps saying error. I have space on my phone, but it still won't load. Any ideas?
  • How to load pictures from my computer with windows 8 onto my iphone 4? I just got a new computer with window 8 and then had to get a new phone. I know how to drag and drop from other devices but my computer does not even recognize that this new phone is plugged in, so there's no dragging and dropping going on. Someone told me that I had to use iTunes, but when I go to iTunes there's no menu options for pictures.