To me this sentence doesn't work. I will let one of the Teachers explain technically why it doesn't, but here's my input for now.
You often hear this combination of words in relation to pop music. Although not incorrect in this context, I think a better understanding of "to" might have been achieved if the writer had also used the word "their":
"Five-member girl group Crayon Pop is seeing the music video to their latest single "Bar Bar Bar....."". As you probably know, originally, only songs were produced in the era before pop videos. Later, videos were produced and released by pop groups to compliment and promote their songs. So you will sometimes see the similar combination, "The video to Crayon Pop's latest song....", where the writer leaves out the word "music", because that is inferred by the fact that the video goes with the song.
So to me, the use of the word "to" in this form helps indicate that one thing is a compliment to another:
For example. "The guidebook to Walking in the Himalayas". The book would compliment your experience of walking in the mountains as it may contain useful maps, travel and safety advice.
My real problem with this sentence is the use of the word "going". I think "go" works and "going" does not. I would change it as follows:
"Five-member girl group Crayon Pop is seeing the music video to their latest single "Bar Bar Bar" go wide in native South Korea with a No. 2 ranking on the Billboard Korea K-Pop Hot 100."
Even then using "go" makes it sound very casual, and the lack of punctuation doesn't help, but then that often goes with writing about pop music.
Student or Learner