According to sources, the highest budget K-pop music video to date is the music video for the song "Idol" by the group BTS. The music video was released in 2018 and was directed by YongSeok Choi of Lumpens.
The budget for the "Idol" music video is reported to be approximately 1.3 million USD, making it the most expensive K-pop music video produced to date. The video was shot in various locations in Korea, including Gyeongbokgung Palace and the Busan Asiad Main Stadium.
The "Idol" music video features various traditional Korean elements, such as clothing, dance, and music, blended with modern elements. The video also features imagery and references to Korean mythology and folklore. The music video has received over 900 million views on YouTube since its release, making it one of the most viewed K-pop music videos of all time.
BTS is known for producing high-quality music videos with elaborate sets, costumes, and choreography. The group's music videos often have themes and messages that are relevant to their fans and address social issues. This has helped to create a strong connection between BTS and their fans, known as the "ARMY."
Other K-pop music videos with high budgets include "As If It's Your Last" by BLACKPINK, which reportedly had a budget of around 800,000 USD, and "Monster" by EXO, which is said to have had a budget of approximately 660,000 USD.
In conclusion, the highest budget K-pop music video to date is "Idol" by BTS, with a reported budget of approximately 1.3 million USD. The video features traditional and modern elements of Korean culture and has become one of the most viewed K-pop music videos of all time. BTS is known for producing high-quality music videos that address relevant themes and issues, which has helped to create a strong bond with their fans.