Despite BTS' phenomenal success in their homeland South Korea and recently claiming the the title as the world's biggest boy band, entering the Official UK Singles Chart is still a massive deal for the seven-member group. 

In the closing moments of their first and long sold-out show at London's O2 Arena last night (October 9), member RM said: "We have waited for today for like, years! When we first heard about breaking the UK charts, it was so amazing and surprising because the the UK chart is so well respected.

"You have the greatest musicians in your country, and in this city, so we feel so grateful for that. We’ll never take it for granted. Thank you so much. We love you London!" 

In September, BTS scored their first UK Top 40 single with Idol, landing at Number 21. Its parent album, Love Yourself - Answer, entered at 14; their third Top 20 record in the country. But it might come as surprise that Idol isn't one of their most played songs.

MORE: View BTS' complete Official UK Chart history