[1] Given the limitations on budget, the group did not rely on income from concert tickets, instead gaining primary revenues from royalty, licensing fees, and selling merchandise.

[2] In September, SING released the single "Moonlight Thoughts" (Chinese: 寄明月; pinyin: Jì míngyuè), their first ever Chinese-style electronic dance song.

[citation needed] Xu Shiyin released her first solo "Bai Yi Shao Nian" on March 14 and its accompanying music video on June 26.

[9] The variety show SING HOME began airing in 2019, with each episode having a different theme and featuring content such as playing games, team discussions, and interacting with fans.

SING performed the song "Ru Meng Ling" in the final of "Wo Yao Shang Chun Wan" (simplified chinese: 我要上春晚) on January 26.

SING, Han Xue, and Wu Mochou performed the song "Hui Jia Guo Nian La"(simplified chinese: 回家过年啦) on the CCTV Internet Spring Festival Event on January 28.

SING, Han Xue, and Oscar Qian performed the song "Nian Ye Fan" for the Hunan TV Spring Festival Event on January 29.

SING performed the song "Ru Meng Ling" (simplified chinese: 如梦令) and "Qian Nian" for the Guangdong TV Spring Festival on February 4.

On November 17, SING was announced as the winner of the Rising Popularity Group of the Year award and also performed the song "Hua Qiang" at the Asia Music Festival 2019 in Shenzhen, China.

On December 8, SING was announced as the winner of the New CPOP Generation of the Year award and also performed the song "Jie Meng" at the Tencent Music Entertainment Festival 2019 in Macau, China.