An English Birthday?

So, Angie and I were in our apartment yesterday and we saw that a family was decorating the piazza below our balcony for a birthday. It looked neat so we took some pics. As we went on through our evening we kind of forgot about the party...that is until we heard singing. However, the strange part was that we heard Happy Birthday in English! WE looked out the window to see all the kids singing Happy Birthday to their friend and they did it in English, I suppose prompted by their parents. It was interesting to say the least.