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.

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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"?