Mike Huckabee's Republican presidential campaign is long over, but newly revealed records show that the former candidate had to make a $25,000 payment for a copyright mistake he made at a rally last year.

Kim Davis, Clerk of Courts in Rowan County, Kentucky, made headlines when she refused to give same-sex couples marriage licenses. She served five days in jail for resisting court orders. Huckabee turned her release into a campaign event, holding a rally on the steps of the Kentucky jail where Davis was held.

As Davis approached the dais, Huckabee's campaign blasted the tune "Eye of the Tiger," the 1982 hit by Survivor. That led Survivor frontman Frankie Sullivan to take to Facebook, where he wrote: "NO! We did not grant Kim Davis any rights to use 'My Tune -The Eye Of The Tiger. I would not grant her the rights to use Charmin! C'mom Mike, you are not The Donald but you can do better than that. See Ya really SoooooooonnnnnnN!!!!!!"

Now, CNN has reported that Huckabee's campaign ended up paying $25,000 to Sullivan's music company to resolve a copyright infringement lawsuit over the incident. Two payments of $12,500 each appeared on a June 20 document filed with the Federal Election Commission.

Huckabee dropped out of the presidential race on February 1 but is still paying off his campaign debts.

Sullivan's attorney, Annette McGarry, said the settlement terms prevented her from talking about the case. Huckabee's campaign and lawyers didn't respond to CNN's requests for comment.

Huckabee's campaign didn't give up without a fight, though. In court documents, Huckabee argued that his use of "Eye of the Tiger" was "de minimis" and should be considered fair use. He also said the rally for Davis was a "religious assembly," which further mitigated against a finding of infringement.

This isn't the first time "Eye of the Tiger" has been in the political eye of the storm. Newt Gingrich used the song at rallies for years before getting sued in 2012, when he mounted a presidential bid. He settled for an undisclosed sum. Republican presidential nominee Mitt Romney also used the song in 2012, but he quickly stopped after receiving a warning from McGarry.

In an interview with CNN, song co-writer Jim Peterik said he doesn't want the song to be used at political events.

"It's probably the number one personal motivation song ever written," said Peterik. "It's one man's struggle, or one woman's struggle, to be the best at what they do. This is about two boxers in a ring. It's about a personal fight, not about politics."