"Standing on my head made my brain grow big enough to enable me to master Mandarin ! " claims headstand expert, street entertainer and Edinburgh University graduate Ivan Inversion (aka Gongsun Hai) who sings his Chinese version of the Headstanding Song dangling upside-down suspended by rope and harness from a tree branch overhanging a pavement in the city of Dalian in Liaoning province China self-accompanied by rhythm guitar.