It's only about two extra lines and the repeating bit at the end, so it doesn't count as any extra work! :P
Thank you for introducing me to things through your requests! It's quite nice to see modern takes on old classics, since the original instrumentation is, sometimes, not as timeless as the melody itself.
I actually didn't know this was a cover before checking out the kkbox page for this song. But yeah, it's definitely interesting to compare and contrast the two versions. I have to admit, I enjoy the updated R&B feel to the new version but both are good in their own ways.