Carrie Underwood says she strove for “unity” by performing at President Donald Trump’s inauguration, but she apparently didn’t win over fellow pop artist Ariana Grande. Underwood sang “America the Beautiful” without musical accompaniment due to an unspecified issue with the audio system.

Carrie Underwood had to sing a cappella at Donald Trump's inauguration, and the Internet had a lot to say. Even Ariana Grande liked an Instagram post seemingly shading the performance. Keep watching for the full story!

Jan. 20, Carrie Underwood performed at Donald Trump's inauguration. She sang "America the Beautiful" a cappella following technical difficulties that delayed her performance.