It looks like there’s going to be a dance-off!

Whitney Thore and her Big Girl Dance Class are set to perform at local festival — and even though they didn’t have much time to prepare their routine, they still make it work! But in an exclusive clip from tonight’s episode provided to Life & Style, tension arises when a dance instructor from a rival class questions Whitney’s skills.

Gia, from the Trophy Wife Fitness Class, throws major shade when she tells Whitney her routine was “cute,” and she suggests that the girls come visit her class in Charlotte, NC to learn how to go “full out” with their routine. But Whitney stands her ground — and defends herself and her girls.

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“She just attacked us basically, made fun of our choreography, wanted to start some kind of rivalry,” Whitney says in the clip, “but I will not be getting into a fight in public on the street.”

Be sure to tune in to find out what happens on My Big Fat Fabulous Life, airing tonight at 9 p.m. EST on TLC.

Scroll through the gallery below for a look at Whitney’s most inspiring Instagram photos!