BTS is performing in Singapore tomorrow, January 19, 2019.

This means there will be a tonne of young adults around National Stadium tomorrow night.

In fact, there are already a tonne of young adults camping out there right now.

Here they are.

The line for #BTSLoveYourSelfSG merch as of 10pm😊
Actually is not that long compared to other country ive been before!! pic.twitter.com/cKvHDWQhUc

— Ai 💜 VMIN FOREVER ☆ taehyung x jimin ☆ (@vmin_nuna) January 18, 2019

It's a long queue already 🙄 #BTSLoveYourselfSG pic.twitter.com/tTVuA0zfnE

— A (@abbykuky) January 18, 2019

And they've been queuing up since about 5pm.

This is the back side of the queue pic.twitter.com/2wRszs35U8

— ⟭⟬💜⟬⟭ Pearᴮᴱ⁷🎟🎫🍇🍇🙏🏻 (@pearonaline) January 18, 2019

And to clarify, this isn't like other massive queues where people are trying to get tickets for a show, these fans probably already have tickets to the concert.

The thing is, the concert only starts at 7pm on January 19, 2019.

So why start queueing now?

Merchandise.

Here are some of the items possibly being sold according to the previous legs of their world tour.

Merchandise sales begin at around 10am the next morning, and there are limitations to how much merch an individual can buy.

Another perk, as seen in these videos, is getting to listen to their idols practising.

HAPPENING NOW: #BTS ARMYs go wild outside National Stadium upon hearing the #Kpop band rehearse hit song Fake Love #LoveYourselfInSG https://t.co/5ALftJgIQ9 pic.twitter.com/t6aCp5Gn8b

— CNA (@ChannelNewsAsia) January 18, 2019

Bts fire rehearsal in SG... #btsinsg #BTSLoveYourselfSG #BTSWORLDTOUR #BTSLYinSG

Video:credit to the owner not mine pic.twitter.com/mS4WyvQjzT

— TATA_TAEHYUNG (@k_tinnie) January 18, 2019

https://twitter.com/bam__jk/status/1086259739753730049

https://twitter.com/JeonsBabyDollx/status/1086242213686923264

Whoa.

Image collated from Twitter