Where did the wild dog come from?

ZhongHai City, Times Square Theater.
Noah Chen, Pauline Song, Stella Song, Xavier Song and Lydia Ma appeared at the entrance of the Grand Theater.
It turned out that the veteran artist Qin Shiyue would be performing at the Grand Theater tonight, and the song he was singing was "Guan Gong's Thousand-Mile Journey Alone".
Xavier Song and Lydia Ma like Cantonese opera and are fans of Mr. Qin.
So, Noah Chen and Pauline Song brought their daughter and accompanied their parents to the Grand...