Actor Park Seo-Joon attended the comeback celebration event of Sistar19 and showed an appearance with Bo-ra, who performed with him as a former MC of music bank. 

Bo-ra posted multiple photos on her social media with the caption "Thank you for congratulating the comeback of Sistar19" on the 15th. 

There were several celebrities that attended the event to celebrate the comeback spotted in her photos. This included Park Seo-Joon, Han So-Hee, Lee Sung-Kyung, Oh Yoon-Ah, Ivy, Aiki, Soyou, Shownu and WJSN which received overwhelming responses from fans. 

The video of Bo-Ra and Park Seo-Joon shouting "Music Bank" together drew attention in particular, as this was the first time in 10 years since they were the former MCs of KBS2 Music Bank back in 2013 until 2015.

Meanwhile, Sistar19 stacked hits on hits with their single album 'Ma Boy' (2011) and 'Gone not around any longer' (2013) and is planning a comeback after 11 years with their new single album 'NO MORE (MA BOY)'. 

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<Translated by=Jisu Kim>