The famous quote from Bull Durham is: "If you believe you're playing well because you're getting laid, or because you're not getting laid, or because you wear women's underwear, then you are! And you should know that!"
I guess that line of reasoning would have to extend to walk-up songs. The subject of Tulo's walk-up song is apparently very important to Tulo, having immediately replaced some random, fan-chosen, pop crap for some other random pop-crap the minute he hit a rough patch, but do grown-ass reporters really have to talk about this shit? This reminds me of last year when people, including Ozzie Guillen, started fretting over Gordon Beckham's walk-up song when he wasn't hitting.
I could care less. If a hitter thinks that's what keeping him from mashing, I guess that's fine, but please, let's not talk about it; it just makes everyone seem stupid.
That said, for the record my walk-up song would either be "Dying Breed" by Five Finger Death Punch, "Big Ego's" by Dr Dre, or "Dog Eat Dog" by AC/DC.