September is expected to a highly anticipated month of K-Pop comebacks as SunMi is among one of the many idols who will be releasing new music soon.
Just recently, Make Us Entertainment released teaser trailers for SunMi's upcoming single 'Siren'.
She is seen wearing a bathrobe with a towel wrapped around her head, pouring some sort of eye drop into her eyes as a blaring siren could be heard afterward.
Every single one of her singles has had tremendous hype around it ever since 'Gashina'.
Her upcoming comeback album 'Warning' is set to to be released on September 4th.