"There are several top tier country artists who support Trump, and I wish they'd finally have the balls to come forward," said John Rich.

Goldberg's comments come just a day after Underwood shared on Monday that she would take the stage at Trump's inauguration. In the statement, she said she accepted Trump's invitation because she loves our country: "I am humbled to answer the call at a time when we must all come together in the spirit of unity and looking to the future."

Trump's second inauguration will be a more star-studded affair than his first in 2017, with top performers in country music and beyond slated to take the microphone and belt out a variety of patriotic tunes during the ceremonial event.