John Rich is in Florida today to unveil a song he's penned for Senator John McCain's presidential campaign.

Rich, a judge on 'Nashville Star' and one-half of the duo Big & Rich, will perform 'Raisin' McCain' at tonight's Country First Concert in Panama City, Fla., which the Republican candidate is scheduled to attend.

John McCain
is a man of extraordinary integrity who I believe has, and will always, put our country first," says
. "Writing and recording 'Raisin' McCain' is my contribution to his campaign. It's my hope that this song will unite young conservatives, rally support and excitement for our Republican presidential candidate, and ultimately inspire people to vote."

Rich said he wrote the music and lyrics to 'Raisin' McCain' as a "fight song" to energize Americans and declare his support for the candidate and his "maverick spirit." The song is available for download on Rich's official website.