It's VERY important for artists to stay connected with their fans on social media. But as THOMAS RHETT has learned, it's even more important to NEVER post pics of your wife in a BIKINI.

Back in May he Instagrammed a photo of his wife Lauren at a lake in Nashville . . . and, naturally, the Internet Idiots were all over it. 


He talked about it in an interview with Taste of Country. He said, quote, "You oughta go look at some of the comments. It's pretty bad. Some were nice, some were not. It was my fault for posting it. I shouldn't have. I should delete it."


As of last night he STILL hadn't deleted it. And yes . . . I HAD to check. It's my job. Here's the link. Lauren's on the left. Don't know who the other woman is.