Pyo Ji-hoon (born February 2, 1993), better known by his stage name P.O, is a South Korean rapper, singer and actor.

He decided to rejoin Stardom Entertainment, after they kicked him out previously before he lost weight and ignored offers from other agencies, to debut with Block B.

In February 2012, the band received heavy criticism for their disrespectful behavior during an interview in Thailand, particularly jokes regarding about the previous year's flooding disaster.

[4] P.O reportedly fainted and was hospitalized for shock on February 24, after learning of a petition calling for the members to apologize by committing suicide.

"Dear My Wife" was released into his cyworld on September 25, featuring (previously part of BoM's) Winner's Mino.

[6] During a November 2012 episode of Weekly Idol, P.O stated that he came from a wealthy family background, explaining that his father runs a duty-free store.

[7] On March 9, P.O released the first song "Amino Acid" from his Mixtape Bigboi is Ready 2 Showtime, featuring Winner's Mino.

P.O also co-wrote the lyrics for the title track of the SBS drama Secret Door, which was performed by Block B and released September 22.

Also in October, the OnStyle network announced that P.O and fellow Block B member U-Kwon would be on the new show Lipstick Prince.

P.O was cast in Living Together in Empty Room, a special variety show broadcast on MBC for the Korean New Year in three episodes from January 26 to 27, 2017.

In the course of the show, two women, trot singer Hong Jin-young and comedian Kim Shin-young, moved into P.O's house.

[30] In addition, P.O was cast as an MC for the cooking variety show Strange Restaurant, which premiered on the O'live television channel March 13.

In May, it was announced that P.O would be an MC for the SBS MTV music program The Show, along with Jeonghwa of EXID and Yeonwoo of Momoland.

[36] Also in June, he and fellow group member U-Kwon received the Maxim K-Model Icon Idol Award.

[41] His song, the funk tune "Men'z Night," was released September 27 and featured the singer Chancellor.

In December, P.O took part in a tribute album for the late singer Yoo Jae-ha to commemorate the 30th anniversary of his debut.

[50][51][52] During the broadcast of the last episode of New Journey to the West 6 on December 2, 2018, it was announced that P.O would be joining the upcoming second season of Kang's Kitchen.

[56] In November 2019, it was revealed that P.O would act as master of ceremony for the upcoming MBC Entertainment Awards, along with Hwasa of Mamamoo and Jun Hyun-moo.

[63] On February 24, 2012, P.O (real name Pyo Ji-hoon) was diagnosed with "stress-induced schizophrenia" shortly after being hospitalized for fainting.