Singing is part of the Filipino culture -- along with eating (5 times a day in a typical Filipino family, Breakfast, mid-day snack (mirienda), Lunch, mid-day snack in the afternoon (followed by siesta) and Dinner...and different activities such as family outing (the whole clan), etc...
To enlighten you a bit, this attitude is derived from our outlook towards "family". Generally, people from the Philippines are family-oriented. Activities done with the whole family enables us to strengthen the bind of each member as such. This is why activities such as singing is very popular because of being a fun activity at home (through a videoke system) regardless of how ugly your voice is (since it's within the family, nobody really cares).
From that dimension it had been extended in friends houses, then colleagues, and well...the nation. One big family.
The culture of eating is the same. Eating together creates an ambiance of togetherness. It is also extended to the neighbors. When we cook some special dish or extra food, we deliver it to our neighbors for free. "This is for you, try this out, it's quite nice"...and the neighbors does the same.
Philippines is a poor country but we do have rich culture. Sometimes, it's sad to hear how other people ridicule the society just because of the minority in Dubai, or UAE for that matter, that does not represent the whole community.
Talk to a person who visited the Philippines and was able to spend some time in the provinces where normal family lives and you will be shocked to know how they would talk about the hospitality of the people.
Even if we have only one bed at home, it MUST be given to the visitor. Even if we have only one meal left to eat, we would wholeheartedly offer it to our visitor.
Might be wrong that such dimension would reach a remote land where our culture is exposed to people who would not understand the reason behind such acts, but that's what make us learn something new from somebody.
The first time I heard an Arab fart out in the open, then the same Arab got upset when somebody else burp in an open...I asked myself, which is more
ing? eh?