American pop music is commonly referred to as just "pop music" outside of the US. Pop music is a genre of popular music that originated in the United States and the United Kingdom in the 1950s. The term "pop music" is derived from the word "popular" and it generally refers to music that is commercially successful and has mass appeal.
Pop music has become a global phenomenon, with artists from various countries creating music that is influenced by American pop music. The term "American pop music" is not commonly used outside of the US, as the genre has become so ubiquitous that it is simply referred to as "pop music" in most countries.
There are a few reasons why American pop music is referred to as just "pop music" outside of the US. First, pop music has become a global genre that is no longer limited to a specific geographic location. As a result, it is not necessary to specify that a particular type of pop music is American.
Second, American pop music has had a significant influence on the development of pop music around the world. Many artists from other countries have been inspired by American pop music and have incorporated elements of the genre into their own music. As a result, it is difficult to distinguish between American pop music and other types of pop music that have been influenced by it.
Finally, the term "American pop music" may be seen as redundant, as the United States is often seen as the birthplace of pop music. The country has produced many of the most successful and influential pop artists of all time, such as Michael Jackson, Madonna, and Beyoncé. As a result, it is generally assumed that pop music is American in origin.
In conclusion, American pop music is commonly referred to as just "pop music" outside of the US. This is due to the global nature of the genre, the influence of American pop music on pop music around the world, and the fact that pop music is often associated with the United States.