Billy Joel and Elton John singing Piano Man

These guys sung this song in Tokyo back in 1998

I'm not sure when the original song was released for the first time by Billy Joel (1985-1986?), but I could find the video. That guy (Billy) really got old pretty quick as you will find out if you compare both videos

http://www.youtube.com/watch?v=BCyKcwvV5gE