Inspiration comes in many forms. For The Band Perry (who wrote this song), "Comeback Kid" is a song about fighting back. It's a song about pushing through. It's a song about believing in yourself. It's inherently a song that many people will find relatable.
The production from Benny Cassette (who co-write the track) is solid and uniquely different for the band. The song is miles better than their last song and should find the band a home with country radio and fans alike.