Sing! China (season 4)
The fourth season of the Chinese reality talent show Sing! China premiered on 19 July 2019, on Zhejiang Television. Harlem Yu returned as a coach for his third season. Na Ying, who last coached in the second season, returned with new coaches Li Ronghao and Wang Leehom, who all replaced Jay Chou, Li Jian and Nicholas Tse as coaches.
Coaches and hosts
Teams
; Colour keyBlind auditions
Similar from the previous season, the blind auditions would see the coaches listening to the contestants' performances while they faced away from the stage. If they like what they hear from a contestant, they press the button on their chairs which would rotate them to face the stage. This signifies that the contestant has been recruited to join the respective coach's team. If more than one coach presses their button, the contestant would then choose the coach they want to work with. If none of the coaches presses their button, the losing artist would leave the stage straight away, without any conversations with the coaches, and the chairs would remain unturned.The performance order during the blind auditions would be decided on the spot by the coaches. The coaches would be given a list of songs which the artists would be performing, and the coaches would take turn to pick the songs which they would like to hear first, and the respective artist would be called upon the stage to perform the song. Therefore, the artists would only be notified of their performance order minutes before their performances. Before the artists perform, they would each select a coach which they would like to work with the most, and the coach's head shot would be shown in real-time on the large screen attached to their respective chairs during their performance. This allows the artists to see how their preferred coaches are reacting to their performances while the latter is facing away from the stage, thus potentially influencing the artist's final choice of coach.
In this season, a new feature named as the "mute-the-mic" button was added during the blind auditions. This allows the coaches to block one coach from pitching to an artist by having the particular coach's chair faced away from the stage and muting their personal microphone. Despite the block, the coach would still be available for selection by the artist as their coach.
; Colour key
| Coach picked this artist to perform | |
| Artist selected this coach as their preferred coach before performance | |
| Coach pressed their button | |
| Artist defaulted to this coach's team | |
| Artist elected to join this coach's team | |
| Artist eliminated with no coach pressing the button | |
| ✘ | Coach pressed their button, but was later blocked by Ronghao from pitching to the artist |
| ✘ | Coach pressed their button, but was later blocked by Harlem from pitching to the artist |
| ✘ | Coach pressed their button, but was later blocked by Na Ying from pitching to the artist |
| ✘ | Coach pressed their button, but was later blocked by Leehom from pitching to the artist |
Episode 1 (19 July)
The four coaches performed a medley of each other's songs – Li Ronghao performed Wang Leehom's "Kiss Goodbye", Wang performed Na Ying's "梦一场", Na performed Harlem Yu's "改变所有的错", and Yu performed "龙的传人". All coaches later joined forces and performed a remixed version of "龙的传人".Episode 2 (26 July)
Episode 3 (2 August)
- Not broadcast fully.
Episode 4 (9 August)
- Not broadcast fully.
Episode 5 (16 August)
- Not broadcast fully.
The Cross Battles
| Artist was given the coach's trump card | |
| Artist won the Cross Battle | |
| Artist lost the Cross Battle | |
| Team won the Cross Battles with highest winning points | |
| ' | Artist advanced to the Cross Knockouts |
| ' | Artist was eliminated by coach |
The Cross Knockouts
Before the Cross Knockout, each coach has to eliminate half of his/her teammates, which means team Ronghao, team Harlem, team Na Ying, and team Leehom will remain six, six, three, and seven artists, respectively. Besides, the "Block" is allowed for coaches in this round to avoid some artists have to compete with the strongest artist on each team. The artist will perform based on the ascending of coaches by draw, and he/she will decide his/her opponent by draw as well. If the artist is used the "Block" by the coach, which means he/she may not face a certain artist from another team by default. At the end of each Cross Knockout, the two artists will receive votes of approval from a 51-person judging panel. The artist with the most votes will advance to the Playoffs, while the other would be eliminated.Colour key
| Artist won the Cross Knockout and advanced to the Playoffs | |
| Artist lost the Cross Knockout and was eliminated |
The Playoffs
The Top 11 performed in the Playoffs for a spot in the finals. The selection of the winner may different which depends which team the artist belongs. For Team Na Ying and Team Harlem, the remaining two artists will performa a song respectively, and their coaches will choose which one as their winners; for Team Ronghao, the coach assigned his teammates have a duo, and the coach has to choose one of them as a winner, which is similar to the Battles of The Voice series; for Team Leehom, since there have five artists advanced to the Playoff, therefore the selection of finalist will divide as two parts, five artists will perform a solo song respectively, two of them will advance to the second round, which the selection method is similar to six-chair challenge of The X Factor series. The rule of second round is same as Team Na Ying and Team Harlem.Finals
The Top 4 performed live in a two-part season finale on 7 October, held at the Beijing National Stadium. In the first round of the competition, the four finalists performed a duet with their coach, and a solo song. Based on the public votes received from the live audience at the end of the first round, the bottom two artists with the fewest votes would be eliminated.The final two artists would then sing their winner's song before a 81-person panel and live audience, who will vote for the winner at the end of the performances. Every member of the panel would be entitled to one vote, and the total number of votes received by the artists from the panel and live audience would be converted into percentage points accordingly. The artist who received the highest number of points would be announced as the winner.
Non-competition shows
The Mid-Autumn Special (12 September)
The ninth episode was a two-hour special aired on 12 September, featuring performances by the coaches and artists in celebration of the Mid-Autumn Festival. The episode was hosted by Yi Yi.| Episode | Order | Performer | Song |
| Episode 9 | 1 | Harlem Yu | "猴Lonely" |
| Episode 9 | 2 | Ronghao Li | "耳朵" |
| Episode 9 | 3 | The Top 42 | "龙的传人" |
| Episode 9 | 4 | Xing Hanming 邢晗铭 | "疯子" |
| Episode 9 | 5 | Li Fanyi 李凡一 | "踮起脚尖爱" |
| Episode 9 | 6 | Liu Minxuan 刘珉轩 | "肆意的河" |
| Episode 9 | 7 | Ronghao Li | "贫穷或富有" |
| Episode 9 | 8 | Zhang Peng 张鹏 | "大江东去" |
| Episode 9 | 9 | Harlem Yu | "在一起" |
| Episode 9 | 10 | Sidanmanchu 斯丹曼簇 | "忘我" |
| Episode 9 | 11 | Na Ying | "出现" |
| Episode 9 | 12 | Na Ying | "珊瑚颂" |
| Episode 9 | 13 | CPU | "玫瑰玫瑰我爱你" |
| Episode 9 | 14 | Jasmyn Aisin Gioro 爱新觉罗媚 | "中国姑娘" |
| Episode 9 | 15 | Wang Leehom | "缘份一道桥" |
| Episode 9 | 16 | Harry Hong 洪雨雷 | "流星雨" |
| Episode 9 | 17 | Wang Leehom | "心中的日月" |
| Episode 9 | 18 | Deer Chen | "妄想的月光" |
The National Day Special (4 October)
The fourteenth episode was a two-hour special episode aired on 4 October, featuring performances by the coaches and artists in celebration of the National Day of the People's Republic of China. The episode was taped on 28 September 2019, at the Cotai Arena.| Episode | Order | Performer | Song |
| Episode 9 | 1 | The Top 11 | "我爱你中国" |
| Episode 9 | 2 | Li Ronghao | "黄种人" |
| Episode 9 | 3 | Li Fanyi 李凡一 | "亲爱的那不是爱情" |
| Episode 9 | 4 | Luo Lei 骆蕾 | "小半" |
| Episode 9 | 5 | Ronghao Li | "作曲家" |
| Episode 9 | 6 | Harlem Yu & his team | "爱转动" |
| Episode 9 | 7 | Wang Shuai 汪帅 | "走西口" |
| Episode 9 | 8 | Jia Zheng 贾铮 | "就是现在" |
| Episode 9 | 9 | Harlem Yu | "静静的" |
| Episode 9 | 10 | Xiao Qiang 肖蔷 | "无问西东" |
| Episode 9 | 11 | Nasi Li 李芷婷 | "你敢不敢" |
| Episode 9 | 12 | Zhang Tianyu 张天予 | "自己" |
| Episode 9 | 13 | Jasmyn Aisin Gioro 爱新觉罗媚 | "长腿叔叔" |
| Episode 9 | 14 | Na Ying | "只有为你" |
| Episode 9 | 15 | Na Ying | "不将就" |
| Episode 9 | 16 | Na Ying | "最长的电影" |
| Episode 9 | 17 | Na Ying | "勇敢的心" |