This is actually advertising the day of the event? This is almost as bad as concert tees or TeeFury's "Pants on the Ground" shirt a couple weeks back. Not worth spending money on something that won't be relevant after the first week or two of owning it. That and a few artistic critiques make this a 0.
About my design
Design reads:
I've Got Soul. I've Got Soul.
Design features a fingerprint pattern in negative space of the "O".
Back of tshirt features similar design but incorporates "One Day Without Shoes"