Going out with a bang! Party Down South's fifth and final season launches on January 28, and the premiere will feature two of the stars coming to blows, as seen in Us Weekly's exclusive sneak-peek clip.

The CMT unscripted series' footage shows Lauren and Tiffany insulting Santana as she tries to relax with boyfriend Lyle in the hot tub. The clip follows Lyle's two pals as they claim that Santana has been cheating on him.

Things explode when Santana follows Lyle out of the hot tub and enters the house, where she and Lauren quickly get in each other's faces.

"Don't f--king come to me like that!" Lauren says. "Don't f--king come to me because I had no problem with you before this s--t."

Santana fires back with, "Get the f--k out of my face, you ugly, fat bitch!"

At that, Lauren has had enough and gets violent. To see the tension escalate even further, watch the clip above.

Party Down South's final season premieres on CMT on Thursday, January 28, at 9 p.m. EST.

Can't get enough of Us? Sign up now for the Us Weekly newsletter packed with the latest celeb news, hot pics and more!