[5] In October 2018, she participated in Dragon TV's reality survival girl group show The Next Top Bang, where she was first introduced to hip-hop and rap.
[17][18] Xie also contributed rap lyrics and sang in the promotional OST "Wings" for the movie Let Life be Beautiful.
"[21] On March 26 and 27 of 2021, Xie participated in The9's first virtual concert, debuting her solo stage for "COMET" and performing other The9 songs.
[22] Later that year, TME Tencent Music invited Xie to be part of its "Today is Valentine's Day" project, for which she wrote a new single, "Black Cupid".
Her acting skills stunned judges and the general public, and after five rounds of competition, she reached the finals and received the "Best Potential Award.
"[25][26] In March 2021, Xie was cast as one of the leading actors in the TV Series "Left Right" alongside Qin Hao, Ren Suxi, and Nie Yuan.
[27] On May 13, a female-focused sitcom format variety show, "Lady's Club," was officially announced with Zhang Tianai, Yang Zishan, and Xie Keyin as the main cast.
[28] In September 2021, Xie Keyin joins the main cast of the movie "Become a Winner" as Wu Yanyan alongside leads Li Chen and Celina Jade.