I'm not surprised about "Freak show" auditions from everywhere - Even in more more "weird" cities in Texas (Austin and Houston), we normally DO NOT SEE people like those piercing oddities tonight. (And - given I've been to San Marcos to the two outlet malls, which are INTERNATIONAL destinations (No kidding), I can vouch that they were more likely color to the show - I have NEVER seen Goths or people who pull that type of stunt there).
I would NOT be surprised though here in regard to adding "flavor" acts - You will most likely have singers attend the Austin audition.
Why? - you have Austin City Limits film there, Sixth Street, then San Marcos, New Braunfels, Gruene, and San Antonio - ALL having several to many venues for new and young singing talent to peform there. And since the show is NOT "America's Got Singers" (yet) you have to add variety.