Stairway to hyuks

Jessica Mitford singing 'Maxwell's Silver Hammer'? Lorne Greene sings 'As Time Goes By'? Jerry Springer: 'Mr. Tambourine Man'? Johnny Cash singing in German? 'I Am The Walrus' - by Jim Carrey? ...

All this necessary stuff, and more, at this site.

Hint: If you need an extra-big laff, hear Australian actor Leonard Teale recite 'Stairway to Heaven' (especially the bit where "the forest will echo with laughter"), and the Aussie Beatles tribute band Beatnix doing a Fab Four-style of the same Zep classic.