SBS 'K-Pop Star' winner Park Ji Min updated fans on her upcoming debut.

The singer posted on her twitter, "I'm finally debuting as a duo~!! 15& ('Fifteen And') completely fighting!! Hoot -3- I'm a girl with surprises~"

Along with her tweet came a photo in which the star could be seen striking a cute pose in her school uniform. The photo also revealed Park Ji Min looking slimmer than her audition program days, showing the hard work she has been putting in.

As reported previously, Park Ji Min will make her debut in October as the duo 15&, along side another talented JYP trainee nicknamed 'genious girl'.

Source + Image: Park Jimin's Twitter