The 10th annual JZ Festival happens at Expo Park this October 18-19, featuring nine stages and areas showcasing jazz and all its manifestations. This year's big names are Bootsy Collins, Sandy Lam, Marcus Miller, and Cui Jian. As well as that, there's jazz from Shanghai and abroad and an electronic stage with local DJs playing left-field sets. Full schedule here. Definitely a nice couple of days in the park. Goes from 1pm-10pm on Saturday and Sunday. Tickets are 320rmb/day on site.