Whatever happened to the art of freestyling?

For most MCs, freestyling means kicking a verse that they’ve written and nobody’s heard…but true freestyling is the art of rhyming straight off the top of the dome.  Newcomer Donnis recently reminded us of the true art of freestyling with this rhyme that he spit on Sirius:

http://www.youtube.com/watch?v=IBOeY6C6W4M

That inspired us to dig in the crates for some of the better freestyles of all time.  Check these out: