Mak Deniro said:
Timbaland has a great ear and has crafted a whole other song around that groove, remember the Tempest beat is only a part of Timbaland's beat - it isnt the whole thing.
The way I see it, Timbaland (nor the production team behind him) didn't add too much to the original song.
He just layered some samples over the snare and added a few bassdrum hits to the rhythm. Hihat was altered by some EQ'ing but still are pretty recognizable. Then some double tempo hihat was played over.
Original bassline was EQ'ed out but it still hears playing on the backround. He played pretty much the same over it just without highest notes..
Of course pop song will need some chorus to standout from rest of the song so they added this simple pim-pom melody over it..
It is still the same track but little more slam to it to cut it through in modern pop. Really, I think it took them 5 minutes to make these basic things to it. And really, I think it didn't take too much skill either.
Edit: About sampling... This went waaayy beyond sampling and since it was done without permission from the original artist, THIS WAS STRAIGHT UP STEALING OTHER PEOPLES WORK!
Check this youtube video where some guy clarifies some points about differences of sampling and this case:
http://www.youtube.com/watch?v=vnF57sSUFAs&watch_response
edit: changed my remarks about the bassdrum