Mustache or Must Ache ?

I don't know what kind of this trend. Everyone is talking about these strange trends in various social networks like Wacebook, Twitter, Thumbler, Instagram, etc. And what i wanted to ask is, why must a mustache? Even among a lot ladylove this mustache. mustache may be must ache. I uploaded this photo in order to look a trend

  
magic mustache
 
originally looks normal

 suddenly grow something
 then Lupin's glass(es) appears
finally i am trendy