Where to go, what to do today in Shanghai. Read on for Shanghaiist’s picks. ONE OK ROCK @ Mercedes Benz Arena Japanese rock band ONE OK ROCK performs at Mercedes Benz Arena tonight at 8pm. Tickets range from ￥480 to ￥1280. Since releasing their single in 2007 in Japan, the band has gained momentum by performing in 100 live concerts every year and has continued their success at rock festivals and signed a worldwide distribution…