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Rihanna, Sarah Hyland

Jordan Strauss/Invision/AP; Raymond Hall/GC Images

Sarah Hyland, like most people, is a big fan of Rihanna. But things didn't go according to plan for the Modern Family actress when both ladies appeared on Good Morning America.

"So @ just walked by my room at I started singing 'Stay' to her... She didn't," the 23-year-old brunette beauty tweeted on Wednesday, Jan. 29.

Talk about hilarious "diss."

Jokes aside, Hyland appeared on the news program to chat about her upcoming film Vampire Academy and her physical transformation for the role.

"Natalie is very different than Haley Dunphy," Hyland said of her character in the ABC sitcom. "If you've ever seen the show, you're gonna be very surprised."

She continued about her makeunder: "I look very different. They put fake pimples and glasses and just like the grossest wardrobe that I love because I got to go to set and didn't care at all what I looked like so it was so much fun. But she's very geeky and her best friend is a gossip because she doesn't have any friends."

Vampire Academy hits theaters on Feb. 14.