Hello, it is almost correct. This way would be correct :
- How significant is/are the media to celebs going far?
"Media" can be plural or singular in English. However, I don't usually say "celebs" in spoken language as an American from New York. I usually see it written as a short form of "celebrities". Also, I am not quite sure if it should be "celebs" or "celebs' " above since I don't usually write a sentence phrased like that.
Here is what I would say (personal preference):
- How significant is the media to celebrities' success?
Hope that helps :)