Style is all about marching to the beat of your own drum – so it’s no surprise that concerts bring out the best fashion statements. Who doesn’t dig the free-spirited vibe you get from a big crowd? The style hit list is endless. Rock concert? Bust out the high-waisted cutoffs and a vintage band tee or crop top. Multi-day indie folk band lineup? Head-bob in a flowy boho skirt, colorful arm bangles, or an easy printed romper. You can go as eclectic or as low-key as you want with your look…