[SUPER JUNIOR] Leeteuk(이특) - Park Jung-su(박정수) - Leeteuk Super Junior

                              Park Jung-su(박정수)(born July 1, 1983), better known by his stage name Leeteuk(이특), is a Korean pop singer, presenter, and occasional actor. He is the leader of the super boy band Super Junior. To prevent confusion with famous Korean veteran actress Park Jeong-su, he decided to use the name 'Leeteuk'. His stage name literally means "special".

When Leeteuk and his older sister, Park In-young, traveled to Myeongdong for a holiday in early 2000, he was recommended by a talent scout to audition for SM Entertainment's Starlight Casting System, an audition that selects artists to sign under their label.

                         After several test recordings and performances, he signed into SM Entertainment and became the company's trainee. That same year, he had his first quick television appearance as an extra in the MBC Korean drama All About Eve, and appeared as a brief model for Pepsi in 2002.

                               In 2003, Leeteuk was put into a five-member boyband with future bandmate Donghae, but the project was quickly dropped. They were then put into the large rotational group Super Junior along with ten other boys. Older than the other trainees, Leeteuk became the leader of the group.

On November 6, 2005, Leeteuk officially debuted on SBS's Popular Songs music program as a member of Super Junior 05, the first generation of Super Junior. The group performed their first single "TWINS (Knock Out)" to an audience of about 500 fans. 

Leeteuk explained that he uses a stage name due to his desire to have a name with the same effects as Kangta (and to also prevent confusion with veteran actress Park Jeong-su). His stage name denotes being "special" as he wants to be a special member in the group. 

Leeteuk also became known as the "special leader" (특별한리더) of the group. Not only becoming a "special leader", but also having a sweet voice as a tenor of Super Junior. He is also noted for having a unique and goofy laugh. Sumber : Wikipedia