The pop princesses were added to the performance lineup on Monday, with Grande slated to join country quartet Little Big Town and "All About That Bass" singer Trainor dueting with Miranda Lambert. The four acts join previously announced performers Jason Aldean, Luke Bryan, Lucy Hale, Blake Shelton, Florida Georgia Line and Keith Urban.
Though Grande and Trainor are about as far from country as two singers can get, we can't wait to see how they collaborate with their performing partners. Could a "Pontoon"/"Problem" mash-up be in the works? "Automatic/"All About That Bass"?
We'll find out when the CMA Awards air Wednesday night, Nov. 5, at 8 p.m. ET on ABC, with Braid Paisley and mom-to-be Carrie Underwood returning as hosts (for the seventh time!).