By that, I'll assume that you believe America has the highest population; far from it. From the last census, I believe there were around 286 million people in the U.S. Take China, it has 2 billion. India has roughly 1 billion (actually, around 900 something million), which shows that Chinese is the language spoken by the majority of the world. While English is spoken in 104 different countries, China is primarily spoken in only four. English will probably move to the top in the lingual-population, anyway.