Jen Affleck is getting ready to bring her hater's heat to her performance tonight on "Dancing With The Stars," performing a contemporary number to Taylor Swift's "Look What You Made Me Do" with partner and Eras Tour dancer Jan Ravnik.

Jen Affleck is *not* keeping quiet when it comes to defending her Dancing With the Stars partner, Jan Ravnik. After former pros Maks Chmerkovskiy and Peta Murgatroyd publicly criticized Jan’s abilities on the show,

The reality TV star's response comes after the 'DWTS' alum said the new pro had "no business" being on the show.