A gal named Aliyah Vallen has set the Internet ablaze after posting a photo of five Alize bottles sitting on a counter at her house -- of varying flavors -- and adding the caption, "THE ALIZE FREAK." As interesting as that title is ... it's not what people are noticing.

Check the background -- there are a couple framed photographs of Shemar in his prime hanging on the wall. Super caj too -- as if they were family portraits or something. So many questions and theories ... the biggest being, this has to be someone's auntie's place, because no one younger than 35 really knows the dude beyond 'Criminal Minds'/'SWAT' fame.

Well, that turned out to be false -- because Ms. Vallen appears to be a bona fide millennial (or even a Gen Z'er) ... who apparently REALLY appreciates Shemar's early work as a model. Also ... she revealed the truth about how many photos she has of him ... it's 4.

Her explanation for the Shemar shrine pretty much boils down to ... she just likes him, and she thinks the pics themselves are funny --- plus, they might make for some good conversation pieces as decor.

And, for those who are "concerned" about her decorative taste, Aliyah has a simple response ... "don't be. it's not your house." Well said -- how she chooses to style her pad is no one else's business but hers.

Now, it doesn't look like SM himself has taken notice of the viral name-drop yet -- he's a little busy down in Mexico, it seems ... plugging a new season of 'SWAT' while he's at it. But, something tells us if/when he catches wind of this, it'll make him feel pretty darn good.