BTS have released a new Seoul promo song, but due to the song's release, the official Seoul tourism website has crashed. 

The boys are the faces of the 'I.SEOUL.U' brand campaign, and contributed in a new song "With Seoul" as part of their activities as the ambassadors to the city of Seoul.

You can check out the new song above and download it for free, here! The website suffered a crash due to the influx of fans wanting to listen to BTS's newest campaign track a few hours back, but it is now up and running. Do you like BTS's "With Seoul"?