Official Kylesa shirt I bought on their first EU tour they played in Europe in 2012 (two more tours followed that same year). This tour was happening from mid January to the end of February, as far as I remember. They were still promoting their Spiral Shadow album back then and they were supported by Circle Takes the Square and Ken Mode. I bought this shirt together with the tour shirt at the show in Karlsruhe, Germany.
The two owls are creating the shape of a heart. I guess that aspect is not a coincidence.