[1] The season ended on April 12, 2019, and Chinese singer Liu Huan named as the winner.
Taiwanese Sodagreen lead singer Wu Qing-feng and Chinese four-member band Super-Vocal (Frank Ju, Ayanga, Cai Chengyu, and ex-member Zheng Yunlong) finished runner-up and third place, respectively.
Similar to the previous seasons, the accumulated votes from both Qualifiers and Knockouts determined which singer would be eliminated from the competition.
Organised by Sina Weibo, an online spin-off called National's Recommended Singer (踢馆赛全民举荐歌手) premiered on December 27, 2018.
[5] Hosted by Hong Tao, the face-off was streamed exclusively online concurrently with the current Knockout Round; it was not broadcast on television.
The first round's eligible contestants were Zheng Yiming, Bii, Eric Chou, and Liu Yuning.
[6] On January 28, 2019, Jefferson Qian was chosen as the second National's Recommended Singer and faced Super-Vocal finalists for the second Pre-challenge face-off.
During the episode, Yang Kun's manager, Li Weijia, left in the middle of the taping due to participate the Chinese New Year Worldwide Celebration 2019.
A fourth singer (Yang Kun) later received a separate message to view the results for the top four placements.
The last three singers (ANU, Chyi Yu and Kristian Kostov) entered the room last, after which Hong Tao announced the results in full.
The second National's Recommended Singer is Jefferson Qian, and the second Professional Challenger consisted of Super-Vocal finalist members Frank Ju, Ayanga, Zheng Yunlong, and Cai Chengyu; their music manager Neil Gao was also a Super-Vocal finalist.
Five singers, including the Challenger Super-Vocal finalists, were selected at random through WeChat messages.
The last two singers (Yang and Kostov) later entered the room after Gagarina's announcement, and the other placements for this round were revealed.
The results for the Challenge was the same from last week, except that the producers randomly selected five singers to reveal the envelopes first.
The second to fourth place singers entered the room first, and Hong Tao announced the results for two of the three placements.
Four of the seven singers who were initial singers—Chyi Yu, Liu Huan, Wu Qing-feng, and Yang Kun—were exempt for this round.
Angela Hui and Melanie Zhang were ranked lowest in the electronic voting for their respective groups.
The Super-Vocal Finalists, Polina Gagarina, and Gong Linna placed in the top three and qualified for the Finals (Breakout success).
The results are announced in a traditional format similar to the past seasons; during the results, Hong revealed that Chen, Kostov, Gagarina and Super-Vocal were the singers receiving a preliminary higher vote from Escape Plan, ANU, Yang and Gong respectively.
These performances were recorded and shortly uploaded onto Mango TV; the voting period remained opened for seven days until the airing date on April 5.
The exception was Chen Chusheng, despite being unsuccessful in the breakout round, was temporarily brought back as a guest singer by-virtue of never being eliminated in the competition and being added on impromptu; it was later revealed to have performed 7th in-between Liu and Super-Vocal finalists.
The episode generated controversy after one of the public audience members, Sakura Zou (邹小樱), made a post on Weibo accusing Super-Vocal Finalists for allegedly using unauthorized music after the show was aired.
However, Souya Music replied on the day after the show that licenses to the program group were never issued and that no copyright violations occurred.
Had Chyi Yu, Gong Linna and Polina Gagarina advanced to the next round, they would have performed, "掌声响起", "走西口", and "Those Were the Days" as their encore songs, respectively.
Liu Huan was declared the winner of Singer 2019 with 62.22% of the votes cast, leading by a 37.37% margin ahead of runner-up Wu Qing-feng.