The song has a nice western feel to it, and K.K. even gets to sing.
Win.
Also, to those who say it's not 'fast enough' or 'epic enough,' the melee levels didn't always possess fast paced / hardcore music.
Yoshi's Island, most of the Mario levels, etc.
It's nice to have a sort of silly song to have a casual smash to.
Though I personally believe this song is fantastic. K.K. Slider is the man. Er, dog.
I just wish K.K. was the candidate for the Brawl battler, though his appearance at 8 pm on Saturdays makes that unlikely...
His guitar would make a fantastic weapon. D: