Though not nearly as popular as 1 through 5, my favorite is the song (and onetime viral video) Prisencolinensinanciusol by Adriano Celentano. It was supposedly written to sound like American English to its Italian audience, but (other than the phrase "all right"), it's composed entirely of nonsense words. I loved it the first time I found it, because I've always wanted to hear a non-English speaker talk "fake English" like most Americans have at some point spoken "fake French" or "fake German." http://www.youtube.com/watch?v=FcUi6UEQh00
That is awesome--I've never heard this before!