SB19 are kicking off their comeback season with another surprise for fans.

On Monday (01/03), the P-pop group dropped a 1-minute teaser for their upcoming single, 'WHAT?'

📽 WHAT❓ Mood Film #SB19WHATMoodFilm: https://t.co/zRrvK0hL2F

WHAT❓ Official MV
🌏 2021.03.09 | 19:00 PHT#SB19WHAT #SB19WhatIsComing pic.twitter.com/sMVI0ARqtM

— SB19 Official (@SB19Official) March 1, 2021

The new song and music video are both slated for release on 9 March 2021. 'WHAT?' is the follow-up to their debut album, Get In The Zone.

Check out their comeback schedule here:

🗓 WHAT❓ Release Scheduler#SB19WHAT #SB19WhatIsComing pic.twitter.com/f9vSWebooX

— SB19 Official (@SB19Official) February 28, 2021

Watch the teaser here: