"I'm getting a lot of text messages from people wondering if I was shading Camila. No! I love her. I love her so much," Dewan said on her Instagram Story on Sunday night. "I am such a big fan of hers. I don't understand what that's about, but no. I love her."
"Guys, we were bumping and grinding so hard to "Señorita!'" Goreski added in the video.
Despite the drama, Cabello, 22, and Mendes, 21, had a great night. The real-life couple took home the award for Collaboration of the Year for "Señorita" -- after which Mendes shared a sweet message of support for his girlfriend.
"Thank you everyone thank you so much!! ❤️ also @camila_cabello i admire you so much you unbelievable human being thank you for being you ❤️❤️," Mendes tweeted. "We love u guys @AMAs."