Kang Daniel was once Cao Lu's backup dancer
In 2004, Cao Lu won a China CCTV singing contest and took Teen Rookie award on CCTV
Cao Lu is known as "The Mood Maker" and still appears on variety shows once in a while
Cao Lu was on "We Got Married" with comedian & mc Jo Seho
Cao Lu beat famous flexible idol Cheng Xiao of WJSN on "Flower Road" in leg splits
Cao Lu is Miao, a minority ethnic group in China. Possibly the only one in Korea
In 2016, Cao Lu was among many Chinese idols who supported the South China Sea movement in China
On "Can I Join You," an elderly women suggested Cao Lu marry her nephew because of her great Korean food cooking skills.