American Products that are popular in East Asia
KFC is popular in Asia. McDonald's has nothing on KFC in Asia especially China.
Pizza Hut while not as popular as KFC is still doing pretty well.
Kit Kats has apparently done well enough to make a bunch of different kinds. Some of these look a little appealing but most of them look disgusting.
Baseball is pretty popular in East Asia and really everywhere.
Spam is very popular in South Korea. (Gross!) Spam became popular during the Korean War, when food was scarce.