First...

watch this video (thanks to Almost Heaven for finding it):

Then watch this one.  He tries to outdo the first one (note the exact same soundtrack, including applause, and the matching mouthing of the words, in apparent parody).  IMHO, this second guy (Jason Garfield, apparently) does some amazing tricks, but doesn't match the rhythm as well, and he didn't quite get that the first one is amazing precisely because of the "look at what the guy can do with just 3 balls" factor:

Both are pretty amazing, though.