Depends on my moods but here you go
http://m.youtube.com/watch?v=BPCjC543llU
This one may not be a favorite so g of mine but it is on my kids, and them dancing and singing along with it is by far some of the best musical experience I have ever had!
http://m.youtube.com/watch?v=jofNR_WkoCE
I removed the s but I still see it as a link. Not sure why.