MANILA -- The tickets for SB19's first major concert in Manila sold out within 3 minutes, the Filipino pop group said Tuesday.

On its official Twitter page, SB19 announced that fans, collectively referred to as A'TIN, "successfully filled out all 3,500 seats" of the Cuneta Astrodome 3 minutes after ticket-selling began.

A'TIN, we successfully filled out all 3,500 seats in just 3 minutes! Thank you very much for patiently waiting. We're sorry for making you nervous 😅

Let's all have fun on December 28! 💙#SB19ConcertinManila #SB19 #SB19_JUSTIN #SB19_JOSH #SB19_SEJUN #SB19_KEN #SB19_STELL pic.twitter.com/xvazZlGLkv

— SB19 Official (@SB19Official) December 14, 2019

The concert is set to take place on December 28.

In another Twitter post, SB19 asked fans who registered twice or bought tickets but will not attend the concert, to cancel their tickets.

"If you register but didn't show up on the concert day, you will be banned from future SB19 events," warned SB19.

"In line with this, if we have remaining slots left after checking the case mentioned, we will inform you very soon regarding re-opening of registration," the group added.

Comprised of Sejun, Stell, Ken, Josh, and Justin, SB19 debuted in October 2018 with the song "Tilaluha."

• Get in the zone: SB19 hopes to pave the way for P-pop

The group achieved mainstream popularity after a video of the members' dance practice for their sophomore single, "Go Up," went viral on social media in September.

In November, SB19 entered music publication Billboard's Next Big Sound chart, which lists musical acts for their fast-rising popularity.

• Pinoy group SB19 enters Billboard's Next Big Sound chart

The group also topped Google's list of male personalities in the Philippines for 2019.

• SB19 tops Google's most searched male personalities in PH