Y.J. began her journey in 2002 in Taipei, Taiwan.  She became a Les Mills Taiwan National Trainer and a Nike Rockstar Freestyle Dance Taiwan sponsored athlete in 2004.  She holds a Bachelors Degree in Physical Education and is a FISAF Taiwan and Nike Rockstar Trainer.  In 2006, Y.J. relocated to the United States and became a Les Mills USA Presenter for BODYJAM, BODYFLOW, BODYCOMBAT,SH’BAM and BODYVIVE. In 2011, Y.J. traveled to New Zealand for a filming of the BODYJAM 57 DVD. In 2012, Y.J. became a Reebok USA Dance team consultant and in 2013 she became a sponsored Reebok USA athlete.