Sony Music Philippines just dropped a cryptic teaser for A'TIN (fans of SB19).

In a surprise announcement on 18 August, the P-pop group's record label shared an image of a box with a giant question mark captioned with "What???" 

What??? 👀👀👀#SB19 #Pagsibol pic.twitter.com/wVyzcYSJN1

— Sony Music Philippines (@sonymusicph) August 18, 2021

'What?' is the lead single of their first EP, Pagsibol, which came out last July. According to SB19, the title "signifies our growth from the group’s formative years to where we are right now."

The teaser comes ahead of the replay of their record-breaking virtual concert, BACK IN THE ZONE, happening this 22 August, 10 AM PHT and 7 PM PHT.

Six Filipino artists paint the stories of SB19's 'Pagsibol' on Philippine jeepneys

The replies to Sony Music Philippines' tweet were filled with guesses by fans - from "physical album?" to "DVD??".

Physical album? 😮@SB19Official #SB19

— JAHne 🌱 (@JAHneeeeNase) August 18, 2021

A physical album???a BITZ Con dvd??@SB19Official #sb19

— Jane (@Jane59280813) August 18, 2021

eto ba laman nyan? 👀@SB19Official #SB19 pic.twitter.com/2aoWKmr47p

— Aji | chirp ² (@angelasgtt) August 18, 2021

OMG! Is this a physical album? If yes, my GITZ Album is having a baby bro na! So excited!!!!! #manifesting

SB19 onSTANWORLD D1@SB19Official#SB19SWVotingDryRun#SB19 #Pagsibol pic.twitter.com/mYuR7TQmGI

— Andie (@ANDIEbiotic) August 18, 2021

Stream Pagsibol below.