Formerly the main vocalist and music producer of South Korean boy group NU'EST, Baekho made his debut as a solo artist in October 2022 with the release of his first extended play Absolute Zero.

[12] On March 10, 2020, together with members JR, Minhyun, and Ren, he enrolled at Hanyang University Institute for Future Talents as freshmen in Practical Music Course.

[18] His stage name was chosen by labelmate Uee of After School,[19] because of his resemblance to Slam Dunk character Hanamichi Sakuragi (known as "Kang Baek-ho" in the Korean version).

Baekho began participating in song-writing and music production in 2015, with his first self-produced songs "Lost & Found" and "VVith" included in NU'EST's fourth EP Q is.

In 2017, Baekho, under his real name Kang Dong-ho, participated as a contestant on Produce 101 Season 2 alongside NU'EST members JR, Minhyun and Ren.

[32] It was revealed by the Court that in the final episode, Baekho was directly swapped out of the group's line-up by the show's producers, who replaced him with the trainee that actually placed 13th.

[36] CJ ENM (Mnet's parent company) released a statement regarding the progress of negotiations to financially compensate all the trainees who were affected by voting manipulation across all the Produce 101 programs, including Baekho.

[44] In the same month, he also participated in his first original television drama soundtrack, releasing strings-based power ballad "That Day, We" for historical epic The Crowned Clown.

[49] For four consecutive years since September 2020, he has been selected as the brand representative model for The Wood of J One Cosmetic, releasing haircare products, body wash, foam cleanser and limited perfume.

[56] In December, Baekho was selected as the MC for season 2 of Idol Challenge: Another Class, a donation-aimed variety show produced in collaboration with Good Neighbors, a non-profit organisation that focuses on children's rights around the world.

[66] From July 15 to 17, Baekho held his first fan meeting "Baekation" as a solo artist, where he performed a new unreleased song on the electric guitar;[67][68] "Wanna Go Back" is later included in his debut EP.

[72] Continuing to take the helm in record production, Baekho weaves a love story throughout the track list, capturing a relationship from its start to downfall.

[73] The EP is headed by title track "No Rules", for which he drew inspiration from his hometown Jeju's night seas, a song about liberation in love that mixes his signature bass lines with a rock sound.

[79] In May, Baekho was cast in his first television drama role, playing Cha Si-Wan in I'll Take the Trip for You (literal translation of Korean title 여행을 대신해 드립니다).

[81] On August 31, Baekho released a remake of Park Jin-young's 1995 sensational brass-powered hit "Elevator", rearranged in the style of new jack swing with an emphasis on vocals rather than rap.

[82] "Elevator" topped Bugs real-time charts upon release,[83] and was greatly received for its stage performances, which emphasised Baekho's sex appeal with sensual pair choreography and homage to Park's original chorus dance.

A duet featuring labelmate Park Ji-won of Fromis 9, the mid-tempo song fuses pop, R&B and disco together, with lyrics flowing like a conversation to depict a blossoming mysterious relationship.

Selected for his renown as a vocalist alongside his experience and insight of being a professional idol active in his 13th year, he is expected to judge and guide contestants in terms of their vocal skills as well as their stage sense and overall performance.

[88][89] Baekho returned to the theatre stage to play Count Axel von Fersen in the musical Marie Antoinette, which ran from late February until May 2024.

[93] On May 8, Baekho released project single album LOVE OR DIE in collaboration with rapper Bigone, as well as a music video for the title track of the same name.

Following nationwide anticipation of his appearance, Baekho was chosen to sing the official theme song for the festival; "Wet & Wild" was released on June 1.

[111] Baekho is a skilled haedong kumdo practitioner, having reached sam dan rank (third-degree black belt) in his seven years of training during school days.

[121][122] After a fan sent a photo of him in a gym to Men's Health Korea, the editorial team invited him to be the cover of the magazine's November 2018 issue.

[132] On April 16, 2018, the Seoul Central District Prosecutors' Office cleared Baekho of the sexual assault charges, and have since dismissed the case.