On June 15, TWICE held a concert 'TWICELIGHTS' as part of its ongoing world tour in Bangkok, Thailand.
During the time when the members of TWICE were standing around to sing a slow song, fans noticed JEONGYEON's eyes tearing up.
A few moments later, JEONGYEON started crying and sobbing, which made a lot of fans concerned.
Jeongyeon couldn’t hold her tears and cried during today’s concert, theres some ONCEs cheering “don’t cry” :( #StayStrongJeongyeon #TWICELIGHTSinBANGKOK pic.twitter.com/JvDRVPlSgG
— Twice pics (@TwicePIC) 2019년 6월 15일
After the concert, fans discovered the reason behind her tears.
JEONGYEON's sister actress Gong Seung-yeon shared a heartbreaking post about their family dog 'Ppo-song' on her social media.
Gong Seung-yeon wrote, "Our beloved Ppo-song departed this life on June 13. I would like to thank everyone who prayed for Ppo-song."
Then, Gong Seung-yeon delivered a message to Ppo-song, "About a year ago, you became unwell. Thank you for staying so strong for the past year. I hope you are healthy over there."
She continued, "Thank you for coming to our family and know that you made us very happy. We will never forget you, Ppo-song. Love you. See you again."
![JEONGYEON](https://img.sbs.co.kr/newimg/news/20190617/201324991_700.jpg)
JEONGYEON headed to Thailand on the following day.
Now that all the mysteries have been solved, fans are flooding social media with hashtags such as '#StayStrongJEONGYEON', '#CheerUpJEONGYEON', #WeLoveYouJEONGYEON', and more to show their support to JEONGYEON.
![JEONGYEON](https://img.sbs.co.kr/newimg/news/20190617/201324990_700.jpg)
(SBS Star)