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Wong is of Hakka descent, with ancestry from Dabu, Guangdong. He started his search for stardom in Singapore MediaCorp's talent show, Project Superstar (绝对Superstar). He was a contestant on season 3 of One Million Star (超級星光大道). He auditioned in Singapore and was one of the five lucky contestants to get the golden ticket to compete in Taiwan. He once PKed with Peter Pan when "Four Princes of Superstar Avenue" (星光四少) went to Singapore. He caught the attention of many people because of his high pitched vocals and falsettos, which sounds like a hybrid of mainly Gilla, a bit of Cher, and Patti Page. He is also well known for his humorous character and speech. He never fails to say Chinese idioms in every week's competition. Wong gotten a sixth position in the competition and was voted as the most popular contestant. He performed five songs in a One Million Star concert show in LA. His performance was highly commended by many.
Wong's debut album, Jing's Note, was released in Taiwan on 14 November 2008. His album was a great success in Taiwan selling over 44,000 copies. While back in his hometown Singapore, it sold over 4000 copies.
Jinglun is attending vocal and acting classes in Taiwan. He was the guest artists for most of Jolin Tsai's Butterfly School Concert Tour. He has also clinched his first endorsement deal with Suntory C.C. Lemon alongside his fellow senior Rainie Yang.
From 2011, he shifted his focus on TV presenting (referred as a variety-show-class entertainer). He, along with Sister Strawberry, took over from Linda Jian (Sister Butterfly) and Hank Chen in November 2012 on a travel show.
In 2013, Wong starred in an original musical by Toy Factory Productions, entitled Innamorati, which features 12 songs sung by Eric Moo, along with 6 other singers including Tay Kewei, Bonnie Loo and Sugie Phua.