Step 1: Gathering The Song You Want to be your ringtone.
1) Open up both Windows Movie Maker and iTunes.
2) Go to iTunes and locate the song you want. ( In my case, I picked Throw This Money by U.S.D.A)
3) Drag This File To Your Desktop.
!!!IMPORTANT!!!!! Make Sure The File is in .mp3 format. You can do this by going into iTunes, right clicking the song you want, then saying convert this selection to Mp3. Locate that file by checking what was the newest song added to your library. Then follow step 3.