JUNHEE (formerly known as Jun) is a South Korean singer under H&P Entertainment. He is best known as the leader and main vocalist of the K-pop boy group A.C.E.

Before his official debut, JUNHEE gained public attention in 2017 when he appeared on the fourth season of I Can See Your Voice. JUNHEE debuted as a member of A.C.E. on May 23, 2017. Later that year, he and fellow A.C.E member Chan competed on KBS2’s survival program The Unit.

In August 2023, Beat Interactive announced that he would retire his stage name Jun and promote under his full given name, Park Junhee, for all future activities.

Following the expiration of his contract with Beat Interactive, JUNHEE signed with H&P Entertainment in June 2025. He officially launched his solo career with the digital pre-release single “Supernova,” before making his solo debut on September 12, 2025, with his first mini album, The First Day & Night. The release showcased a more personal side of his artistry while allowing him to establish an identity separate from his work with A.C.E.

In 2026, JUNHEE announced his second mini album, LOVE METHOD, continuing the next chapter of his solo career. The album featured three title tracks including, LA LA LA LUNE," “5 STARS,” and “Forever Young.”