Okay, explain the difference between country and pop music. Is it the twang? Just a bit of editing will make you believe you hear a twang in this song, and not just from the instruments. Master music mixer Bill McClintock mashed up "Eye of the Tiger" by Survivor and "Goodbye Comes Hard for Me" by Merle Haggard. The occasion is the 40th anniversary of "Eye of the Tiger," a song that became a big hit due to its inclusion in the movie Rocky III, which opened in May of 1982. This mashup works way better than it has any right to, but it will also make you giggle.