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The members of 2PM all auditioned to become part of JYP Entertainment, to which the Wonder Girls also belong. Some members held their auditions in other countries; for example, Park Jaebeom, Nichkhun Buck Horvejkul[2] auditioned in the United States. Other members already had experience in the entertainment industry prior to their acceptance into JYP Entertainment, such as Kim Junsu, who had won various singing competitions, and Ok Taecyeon, Lee Junho and Hwang Chansung, who had participated in the show 'SuperStar Survival'.

2PM's and 2AM's training days were filmed in a documentary called Hot Blood Men, which aired on Mnet. The show documented the rigorous training program of the JYP trainees who were to be part of the group One Day, as well as the elimination of three trainees from the group.

Jaebeom (재범)

* Full Name: Park Jaebeom (박재범)
* English Name: Jay Park
* Date of Birth: April 25, 1987 (1987-04-25)
* Position: Leader, Vocalist, Rapper
* Education: Dankook University

Jaebeom was the leader and oldest member. He was born and raised in Seattle, Washington, more specifically in Mountlake Terrace[citation needed]. Originally entering JYP Entertainment as a rapper and b-boy, he trained for four years to improve his singing and Korean. It was initially his mother who led him to apply as he wished to not attend college, and Jin-Young Park (JYP) himself watched his audition and brought him to Korea.

Junsu (준수)

* Full Name: Kim Junsu (김준수)
* Date of Birth: January 15, 1988 (1988-01-15)
* Position: Lead Vocalist

Junsu is known as the lead vocalist of the group. He is originally from Daegu, South Korea. He originally auditioned for YG Entertainment, where he befriended G-Dragon and Tae Yang of Big Bang. He was accepted into both YG & JYP Entertainment, but chose to take the path of JYP in his final decision.

Nichkhun (닉쿤)

* Full Name: Nichkhun Buck Horvejkul (นิชคุณ หรเวชกุล)
* Date of Birth: June 24, 1988 (1988-06-24)
* Position: Vocalist

Nichkhun is a vocalist in the group. He is half Thai and half Chinese. He was born in Rancho Cucamonga, California. He spent his childhood in Thailand and in California and studied abroad in New Zealand. He returned to the States for high school at Los Osos High and was scouted by a JYP talent agent in Hollywood, California while he was attending the Korean Music Festival in Los Angeles.

Taecyeon (택연)

* Full Name: Ok Taecyeon (옥택연)
* Date of Birth: December 27, 1988 (1988-12-27)
* Position: Main Rapper, vocalist
* Education: Dankook University

Taecyeon is the main rapper of the group. He was born in Seoul, South Korea but immigrated to Bedford, Massachusetts for approximately seven years.[12] He originally auditioned for JYP Entertainment in New York City to become a model. Taec was also on the same audition show as Junho and Chansung, Superstar Survival, but was the first contestant to leave the show. He featured in "Yes I'm In Love" by Bada on her 4th album and Baek Ji Young's 2009 song "내 귀에 캔디" (My Ear's Candy).

Wooyoung (우영)

* Full Name: Jang Wooyoung (장우영)
* Date of Birth: April 30, 1989 (1989-04-30)
* Position: Vocalist
* Education: Ho-Won University

Wooyoung is a vocalist and dancer. He is from Busan, Korea and was selected as a JYP trainee through MGoon's JYP auditions, of which he won first place against 1,000 other candidates. Before debuting in 2PM, Wooyoung filled in as a dancer partner with Wonder Girl Yoobin when TOP from Big Bang fainted the day before the special performance with the Wonder Girls during the 2007 MBC Music Awards.[citation needed]

Junho (준호)

* Full Name: Lee Junho (이준호)
* Date of Birth: January 25, 1990 (1990-01-25)
* Position: Vocalist

Junho is a vocalist and dancer for the group. He earned a contract with JYP Entertainment after he won a contest in JYP's Superstar Survival in 2006.

Chansung (찬성)

* Full Name: Hwang Chansung (황찬성)
* Date of Birth: February 11, 1990 (1990-02-11)
* Position: Vocalist, rapper

Chansung starred in the highly-rated Korean sitcom "Unstoppable High Kick" prior to his debut with 2PM. Chansung participated in the same survival game as Junho but lost. He auditioned a second time and was accepted into the company.