The British musical Mamma Mia has been staged in more than 170 cities around the world since it was staged in London in May, 1999. In just eight years, a total of more than 30 million viewers watched the musical, and the box office success is reflected in its current weekly income of more than 8 million dollars.

Mom is a mother of many languages, including English, German, French and Chinese. . . . Perhaps this is the first time that a human child can make a sound easily.