Why would she know Miguel though? No shade to him but they're in completely different genre's and Kelly is known for keeping herself out of the public eye just chilling on her ranch listening to old Reba albums.
I mean y'all act surprised

It wasn't rude at all, if anything she was complementing him he should be happy.
+ She probably had a few drinks to calm her nerves, not to mention her ADHD, she always acts really hyper like this, us fans know

It all adds to her charm, she's hilarious and beautiful.