Xu Yi Yang (徐藝洋), better known was Yiyang (이양), is a member of the Chinese girl group Legal High.

She was a trainee in SM Entertainment, and a member of a pre-debut training team named SMROOKIES, established in 2013. She was introduced on September 19, 2016.

In September 2018, Yiyang confirmed that she had left SM Entertainment.

She then joined the Chinese reality show The Next Top Bang where she was able to become a finalist and join the group Legal High.

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