Can't tell you how many times I've seen these songs covered by K-pop artists:
"Watermelon Sugar" - Harry Styles
"Havana" - Camila Cabello
"Senorita" - Camila Cabello
"Let It Go" (The Frozen song)
"Flashlight" - Jessie J
I wonder why these songs stand out to them so much. Often times, the hype for these songs dissipated in the West much earlier, but they're still charting in Korea.
What are some other ones?