In the semifinals of 'Active King of Singers 3,' Lee Soo-yeon, Cha Ji-yeon, Hong Ji-yoon, Goo Soo-kyung, Bin Ye-seo, Solji, Kang Hye-yeon, Kim Tae-yeon, Hong Ja, and Geum Jan-di were confirmed as finalists. The 10th episode, aired on February 24, recorded a peak viewership rating of 13.2% in the Seoul metropolitan area and 12.7% nationwide, setting a new personal best. This program ranked first in viewership ratings across all channels on Tuesdays for four consecutive weeks.

In this semifinal, the second round featured the 'One Last Flip: Korea-Japan Special Move' competition. Unlike the first round, the second round was scored out of 800 points, and combined with the national cheering votes, the top nine contestants advanced directly to the finals. Participants took the stage with solo songs they were confident in within their respective genres.

Soyoumi performed 'Telepathy,' a special training piece from her father, Somyung. She showcased an addictive retro dance, but received criticism from Lee Ji-hye, who questioned whether it was a special move song suitable for the finals to demonstrate vocal ability, resulting in a score of 303 points.

Kim Joo-i performed 'Wind Path' but received a score of 260 points after Joo Hyun-mi commented that listeners could not emotionally follow the transition from traditional Korean music to trot.

Kang Hye-yeon chose 'Flower Wind' and delivered a lovely performance, scoring 303 points.

Hong Ja evoked emotion with a stage set to 'Cinema Paradiso,' earning 298 points. Lee Soo-yeon performed 'Seasons of Fate,' scoring 368 points. Hong Ji-yoon presented a Korea-Japan version of the boat song, mixing Korean folk song 'Boat Song' and Japanese folk song 'Soran Bushi,' and scored 379 points.

Solji emotionally sang 'True Love,' achieving 380 points and taking first place. Kim Tae-yeon selected 'Anarchist Blues' and earned 320 points. Goo Soo-kyung scored 335 points with 'Ecstatic Confession.' Bin Ye-seo performed 'Wandering Youth' but scored 315 points. Geum Jan-di chose 'Swaying in the Wind and Soaked in the Rain,' scoring 266 points. Cha Ji-yeon performed 'Lonely Lover,' earning 366 points.

After the second round, the final rankings combining national cheering votes and the judges' scores were announced. Hong Ji-yoon ranked first with 140 points, and Lee Soo-yeon, Cha Ji-yeon, Goo Soo-kyung, Bin Ye-seo, Solji, Kang Hye-yeon, Kim Tae-yeon, and Hong Ja secured direct tickets to the finals. Geum Jan-di, Soyoumi, and Kim Joo-i became elimination candidates, with Geum Jan-di joining as the last finalist.

The finals are scheduled to air on March 3. The final contestants are preparing for their last battle toward the Taegeuk mark.