The year he turned 18, he debuted as the youngest member of the seven-member group Block B. He made his debut stage on KBS2’s Music Bank. In February 2012, the group started promotions with “NalinA.” In October 2013, Block B took first place on a terrestrial music show for the first time since its debut, with Very Good.
In 2015, he founded the theater troupe Sonyeon, and in April he released Conduct Zero with B-Bomb and U-Kwon as the unit Block B-Bastarz. In February 2016, he staged the troupe’s play Superman.com, and in October he returned with Bastarz, writing the lyrics of the title track and taking part in every track on the album. In January 2017, he appeared in MBC’s Lunar New Year special Living Together in Empty Room, and in September he appeared in SBS’s Temperature of Love and released his first solo single. In December he won the popularity award at the MBC Entertainment Awards.
The breakthrough yearIn July of the year he turned 25, he appeared in tvN’s Great Escape, and on Sept. 30 he joined New Journey to the West 5 as a new member and became known. He then appeared in MBN’s Love Alert and tvN’s Encounter.
In March 2019, he became a regular on Amazing Saturday, and he appeared in Kang’s Kitchen 2 in May, Hotel del Luna in July and New Journey to the West 7 in October. In October 2020, New Journey to the West 8 began, and he also appeared in JTBC’s More Than Friends. In October 2021, he signed an exclusive contract with Artist Company.
In 2022, he played the lead in the troupe Sonyeon’s play Playback, and on Mar. 28 he enlisted in the Marine Corps. He was discharged at the end of his term on Sept. 27, 2023, and the film New Normal was released in November.
In July 2024, he appeared in SBS’s Good Partner. In January 2025, it was announced he was leaving Great Escape, and in March he was announced in the cast of Netflix’s Teach You a Lesson. In June 2026, Teach You a Lesson was released, and in July he was in a traffic accident in Jeju.
P.O (born Feb 2, 1993) debuted with the Block B single “Do U Wanna B?” on Apr 15, 2011, the year he turned 18, and became known on Sep 30, 2018, the year he turned 25, when he joined tvN’s New Journey to the West 5 as a new member. In 2023, the year he turned 30, he was discharged from the Marine Corps.
Ages are by calendar year (the year minus the birth year), birthdays aside.