How to move music from itunes on a computer to my iphone

Usually i buy my music straight from my iphone but i bought a cd that has like "exclusive tracks" and i want to get it onto my iphone but i don't know how! Can anyone walk me through how to do it? More specifically i just want three songs off the cd cuz the rest i bought on my iphone already! Please let me know!

I'm not sure about the latest version of iTunes, but this works for older ones. It's probably the same though.
Put the disc into your computer, it'll ask you if you want to import music from the CD, click yes.
it'll then take you to the disc ripping window where you can select which songs you want to rip individually. It rips them to a different folder than your music folder, so you'll have to search the name of the song and click "open file location".it will take you to the destination of all the songs where you can then cut and paste them where you want. If you do move them elsewhere, you'll need to add them to iTunes again. Type the name of each song and delete them from itunes then add them again from their new location. It might say "track 1 track 2 track… " and lack metadata, so you'll have to put that in manually, which is easy. When in itunes, click "ctrl" and then select each song belonging to the same album. This should only highlight the songs you chose, then right click and scroll to "get info" it comes up with a prompt, click yes. Type the artists name and the title of the album etc.once that's done you can click "get album artwork" and it'll download the picture. If you want to embed the art into the music you'll need to click "get info" move to the "artwork" tab and copy the picture, select the whole album and "get info", and paste the picture on the bottom right in the square. Embedding the art work will keep the picture with the song, so should you need to swap computers the artwork will still be there. It's a little bit of hassle for a nice clean organized iPod.