"This is most likely not a font" would do just fine.
The automatic response is usually:
"This is most probably not a font"
Though, you don't have to use "Most" and "Probably" together.
It is poor grammar
I also think the "Smilies" should have different names. Not all of them, but SOME of them.
(I don't think one should be called sh_t. You never know what age is on here.)
Lady Gaga uses mostly Arial, Arial Bold, and Arial Narrow on her covers.
This dosen't look like a font. It looks custom made.
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