They can indeed.
How many underscores?I see your underscores and raise you a bunch of '-'.------------------------------
How do you pronounce this dude's ( or lady's) name?
I just wanted to point out that the website's advertisement (however many thousands of pianists--I don't recall the precise number--can't be wrong) is a false appeal to popularity.
Ah, so it's a trendy logical fallacy. The Elvis fan quote is actually used for demonstrative purposes in the Wiki on ad populum. All in good fun.
Where is that? I'm assuming it's on PS here but I don't see it.
There are nine underscores, and there is no real significance to that number (at least as far as I know).