Choi Si-won, South Korean singer and actor

Choi Si-won, known mononymously as Siwon, is a South Korean singer, songwriter, model, and actor, known for his work as a member of South Korean boy group Super Junior. Choi was a special representative for UNICEF Korea from 2015 to 2019, before being chosen as a UNICEF East Asia and Pacific Regional Office ambassador in November 2019.

April 7 is the 97th day of the year in the Gregorian calendar; 268 days remain until the end of the year.