Siwon can speak Korean, basic Mandarin, and very little Cantonese.
He is also one of the first four Korean artists to be on Chinese postage stamps.
They debuted in China at the 8th Annual Music Chart Awards, simultaneously with the release of their first music video, "U" on 8 April 2008.
This was followed by the release of the debut Chinese-language studio album, Me in selected provinces in China on 23 April and 2 May in Taiwan. He co-starred in Hong Kong historical-action film Dragon Blade with Jackie Chan, crime thriller Helios and sports drama To the Fore alongside Eddie Peng and Shawn Dou.
However, just a few moments ago he clarified the identity of his girlfriend -- E. But yet ppl like you cling on to his every word and use it against him every opportunity you have.
And if he still does not fully support gay rights so damn what??
The cause was identified as sepsis, brought on by the bite.
Choi and his father separately wrote letters of apology on their Instagram accounts on 21 October 2017.
In April 2008, Choi was put into seven-member sub-group Super Junior-M, a Mandopop subgroup of Super Junior for the Chinese music industry.
The campaign is named as "SMile for U" which is a music education programme for children with disabilities conducted in partnership with Choi's agency.
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Although a family member of the deceased told media that the family were not willing to take any legal action, the Choi family received severe backlash from the public for not taking any precautionary measures with their dog.
Upon his release from the military Choi confirmed to volunteer for a UNICEF campaign in Vietnam from August 21 to 25, 2017.
A year after, Choi made a brief appearance in short drama, Precious Family and again in 2005 in the KBS drama Eighteen, Twenty-Nine as young Kang Bong-man, while in 2006 he played the supporting role of Park Sang-woo in drama Spring Waltz.