Well, to be pedantic again, you're just plain wrong in the first instance. That's a standard use of the English word "anyone": the "[who?]" has already been answered by "who sings".

One might equally pointlessly point out that your post above could be "edited" in exactly the same way: "I" [who?] and "might" [citation needed] etc etc.

But the crucial difference is that both my comment and your reply (by and large) did at least make sense, unlike the inarticulate comment on Wikipedia about crooners that mildly irritated me in a Lynne Truss-like fashion.