Carrie Underwood Sunday Night Football
Facebook/Sunday Night Football on NBC

Carrie Underwood, NFL and NBC Universal Hit With Lawsuit Over 'Sunday Night Football' Song

Pop-country performer Heidi Merrill believes that more than the title from her 2017 YouTube upload "Game On" got recycled for Carrie Underwood and NBC's current Sunday Night Football theme song.

A complaint was filed in the US District Court for the Southern District of New York by Merrill and her co-writers Alex Wong, Jeff Cohen and Niclas Lundin, accusing Underwood, the NFL, NBC Universal and Underwood's publishing companies and co-writers of copyright infringement.

Merrill claims to have emailed the song in 2017 to Underwood's producer, Mark Bright, who allegedly said, "We're going to have to pass." A "striking similar" song later premiered for Sunday Night Football's 2018 season.

Read More: The 10 Best Carrie Underwood Songs, Ranked

Per the website Deadline, Sam P. Israel, the managing partner of Sam P. Israel PC and a representative of the accusing parties, called the alleged plagiarism "a blatant attempt by a celebrity singer to rip off other artists' work, and it won't be tolerated. It's indefensible to steal music created by hard-working songwriters and then broadcast that theft on national television."

Underwood, the NFL and NBC Universal have yet to comment on this pending legal matter.

Now Watch: Carrie Underwood Songs Every Fan Knows By Heart