Where to go, what to do today in Shanghai. Read on for Shanghaiist’s picks. Concrete & Grass Music Festival Annual music festival Concrete & Grass is back again featuring 60 artists across 4 stages. The lineup includes anything from Japanese rock, Bollywood to Cantonese hip-hop – the best of China and the rest of the world, compressed in two remarkable days. Spend this weekend with music, food, sports, games, craft cocktails and much more interactive…