Will K-pop's Globalization Keep on Going or Turn into Stagnation?

Have you realized the South Korean Wave has already entered into Western markets, including the United States?  Can you believe some South Korean idol groups hold concerts in Europe and the United States, tickets sell out within minutes? Well, the fact is, the K-pop(an abbreviation of Korean pop) has spread infectiously throughout the world over the past decade. And social media plays a viral role in helping K-pop spread all around the world.

You may not familiar with any of the names of South Korean idols; however, the fact is K-pop has become increasingly popular in U.S., especially among the younger generation.

K-pop embraces "genre fusion" with both singing and rap, it also combines solid performances and visuals at the same time. In most cases, K-pop expressed in the form of idol groups with synchronized dance moves and complex gestures. Besides, in order to stand out from rapidly changing conditions of showbiz all around the world and to elevate its popularity, most of the K-pop female groups are famous for their sexually suggestive dance moves with doe-eyed innocence. And male groups are noted for "dorky cool" style.

Korean pop culture is becoming an increasingly global phenomenon, in large part, because the K-pop industry adepts at taking advantage of social networking services and the video sharing platform like YouTube. Despite the South Korean music industry is comparatively small. With the help of social media platforms, as soon as songs are released onto national television, they can be uploaded onto YouTube simultaneously. This makes it easier for K-pop stars to reach large, more global audiences.
Besides, Korean idols are smart enough to realize the impact of groundswell, so they utilize the Facebook, Twitter, and Instagram to reach out broader audiences and expand their market in other countries.
For instance, as one of the representative idols in Korean, G-dragon has more than 7.9 million followers on Instagram. And the band--Big Bang--to which he belongs has been described as "the biggest boy band in the world" by the Hollywood Reporter. 
Another example I have to mention is the "Gangnam Style Trend" which had swept the world few years ago.

Due to strongly additive beats, "Gangnam Style" gone viral on the Internet since it has released, achieved more than 2.5 billion views since it was posted on Youtube. Even President Barack Obama has said that he is confident to pull of some of the dance moves as seen in the video for Psy's hit single 'Gangnam Style'. That's unbelievable!
However, when we take a look at media attention of K-pop heat in U.S. from 2012 to present, it is not hard to find out that the search volume in U.S. started to decline since the middle year of 2012. 

Search Volume for K-pop since 2006 according to Google Trends

Interestingly enough, despite South Korean music industry has struggled to have a foothold in other countries' music industry. We may wonder why K-pop search volume had a declining tendency. From my perspective, the cultural difference is the biggest obstacle for K-pop remaining such a high degree of popularity in countries which have totally different culture backgrounds. Because once the freshness of South Wave fades away, no matter how high the exposure rates of K-pop are, the status of local music will once again be strengthened. This can make K-pop even more difficult for further expanding markets in these countries.
Even though the K-pop music industry desperately adjusts its objectives and utilize social media platforms to meet customers' needs all around the world. It's still worth wondering whether K-pop is going to be globalized further or starting to be stuck in stagnation.  What is your idea?