A Chinese student wraps her arm around her waist and touches her belly-button to attempt a Belly-button challenge at a school in Luoyang city, centr Stock Photo - Alamy

Belly Button Challenge”: The new buzz exciting the Chinese web

Arm around waist hi-res stock photography and images - Alamy

Belly Button Challenge”: The new buzz exciting the Chinese web

Chinese Student Wraps Her Arm Her Waist Touches Her Belly – Stock

Arms around waist hi-res stock photography and images - Alamy

With a belly hi-res stock photography and images - Alamy

Belly button not pregnant hi-res stock photography and images

Don't cyberbully her': celebrity Chinese street food seller with nice

Chinese Student Wraps Her Arm Her Waist Touches Her Belly – Stock

Belly chinese hi-res stock photography and images - Alamy

Waist wars: China belly button challenge gets trending - BBC News