Pre-debut Prior to debut, members Hangyul and Dohyon participated in
Produce X 101, where both finished in the final line up and debuted with
X1. Following the early disbandment of X1, Hangyul and Dohyon then went on to debut as the duo,
H&D, in April 2020. Beginning September 5, 2020, the members were teased 3 times a week until all members were revealed. After all members were named. the group name BAE173 was announced.
2020–2023: Debut with Intersection: Spark, Trace, Blaze, Odyssey: Dash, Peak Time and Dohyon's departure BAE173 released their debut EP
Intersection: Spark on November 19, 2020, with the title track "Crush on U". The group held an online showcase that was broadcast simultaneously on
V Live and YouTube. Their debut music video for "Crush on U" went on to reach 10 million views in 6 days. On November 29, the group released a follow-up track meant for fans titled "Every Little Thing is You" (). The track featured writing credits from the group's youngest member Dohyon. In December 2020, it was announced that BAE173 would be the cover artist of Ten Asia's Tenstar magazine and have a 24 page feature. BAE173 expressed their goals for the future and how they felt leading up to their debut. On April 8, 2021, BAE173 released their second EP
Intersection: Trace and its lead single "Loved You". On March 30, 2022, BAE173 released their third EP
Intersection: Blaze and its lead single "Jaws". On May 20, 2022, BAE173 held a fan sign event at Nissho Hall in Tokyo, Japan at 12:00 p.m. on the 20th. In addition, the
2022 BAE173 Fan Meeting in Japan - Hajimete was held at 6 p.m. of the same day and at 6 p.m. on May 21 again. On August 17, 2022, BAE173 released their fourth EP
Odyssey: Dash and its lead single "Dash". In February 2023, it was announced that BAE173 would be included among the 24 contestants in the
JTBC idol survival show
Peak Time. They were introduced in the show as Team 13:00, as the contestants were represented with an hour of the day. The group reached the finals and finished in fifth place. Through the show, the group received and released two new songs, "Criminal" and "GT". On June 22, 2023, it was announced that Dohyon had left both Pocketdol Studio and the group after winning his dispute against the label.
2024–present: New Chapter: Luceat and members' participation in Project 7 and Starlight Boys On March 13, 2024, after participating in
Peak Time and Dohyon's departure, BAE173 returned upon the release of their fifth EP
New Chapter: Luceat and its lead single "Fifty-Fifty". On October 18, J-Min, Muzin, Junseo, and Youngseo participated in JTBC's reality competition show
Project 7. On October 26, Hangyul, Doha, Bit, and Yoojun participated in
iQIYI's reality competition
Starlight Boys. On December 27, during
Project 7s finale, member J-Min finished in 3rd place, placing him in the line-up of the project boy group
Close Your Eyes. The remaining members Muzin, Youngseo, and Junseo, finished in 11th, 17th, and 21st places respectively. The remaining members Yoojun, Doha, and Bit were eliminated in the final round in episode 10. ==Members==