Very charming but, in all fairness, Victor Borge came up with the same thing in 1951. It can be seen here on RU-vid in a clip listed as "Victor Borge - Happy Birthdays"
Thank for your recommendation; I like your recommended vdo too; but I think Victor Borge just put Happy Birthday into the original songs, while Zubin Mehta re-arranged the Song to the varied composers' style. // Sorry, my Eng is poor.
Clearly not =) He says "Viena dice Happy Birthday". "Viena dice" is the Spanish for "Vienna says". He keeps speaking in Spanish the whole time through.