Pyo Ji-Hoon (표지훈) is a South Korean actor, rapper and singer, His also known as P.O., Pyo Jihoon, Jihoon and Pyo Ji Hun, He was born on 2nd February 1993 in Seongsan-dong, Mapo District, Seoul, South Korea. He made his debut in April 2011 as the lead rapper, vocalist, and maknae of the South Korean boy group Block B with the digital single “Do U Wanna B?”. The group, created by producer Cho PD under Stardom Entertainment (스타덤 엔터테인먼트), quickly gained attention for their bold concepts and energetic performances. Block B enjoyed early success with hit songs such as “Nalina,” “Very Good,” and “Her,” carving a unique place for themselves in the K-pop industry with their rebellious image and distinctive musical style.

In April 2015, he further showcased his versatility by debuting as a member of Block B’s sub-unit BASTARZ (바스타즈), alongside fellow members U-Kwon and B-Bomb. Their first mini-album, Conduct Zero, featured a darker, more intense concept, and received praise for its mature sound and strong stage presence.

Expanding his talents beyond music, he began appearing in variety shows, showing his charm and wit to a broader audience. In 2016, he made his theatrical debut in the play Superman.com, taking on a challenging stage role that highlighted his acting skills. A year later, in September 2017, he made his television debut in the drama Temperature of Love, stepping into the world of TV acting and gaining recognition as a rising actor.

In January 2018, Block B released Re: Montage, a repackaged album, before the group went on an indefinite hiatus to focus on individual activities and mandatory military enlistments.

In September 2021, he parted ways with KQ Entertainment and signed with Artist Company (아티스트컴퍼니), home to several prominent actors. He enlisted for his mandatory military service on March 28, 2022, and was officially discharged on September 27, 2023, marking the beginning of a new chapter in his multifaceted career.