What did K-pop band BTS get for performing at a Korea-France Friendship Concert in Paris?

Group appeared at event in Paris before South Korean President Moon Jae-in’s summit meeting with French President Emmanuel Macron last October
How much does the K-pop superstar boy band BTS get paid for a concert? Millions of dollars? Maybe not.
Last week the group reported that it had sold more than 600,000 tickets from its extended world tour, “Love Yourself: Speak Yourself”, raking in a staggering US$79 million so far.
However, sometimes the boy band has defied the norm. Last October, for example, the seven-member boy band performed in Paris, France, in from of South Korea’s current president, Moon Jae-in, for a much smaller return: presidential watches.
Tak Hyun-min, the former protocol presidential aide, who organised the 2018 performance, revealed details of the event last Friday.
While appearing on the YouTube talk show, Rhyu Si-min's Alileo, Tak expressed his gratitude to BTS for accepting his offer to perform at an event in Paris attended by Moon.

Tak said he had asked the group to perform at the Korea-France Friendship Concert, attended by Moon and the first lady Kim Jong-sook, before Moon's second summit with French President Emmanuel Macron.
“The band was on the European leg of its world tour [at the time] and had only one day off,” Tak said.