The Singaporean star rattled the home crowd inside the Singapore Indoor Stadium after emerging as the youngest male mixed martial arts (MMA) world champion at only 20 years old.
In the first round, Aoki imposed his will by taking Lee down and locking him with armbar, but the hometown hero managed to escape the grip.
In the second round, Lee took charge as he unloaded a barrage of punches to put Aoki down and out to seize the prestigious ONE Championship world title.
This was Lee’s second attempt at a world title. His first title shot was a featherweight bout against Martin Nguyen in 2018, where he lost via split decision.
In 2016, his sister, Angela Lee became the youngest ever MMA world champion at 19 after defeating veteran Japanese fighter Mei Yamaguchi.
Meanwhile, in the co-main event, Regian Eersel of The Netherlands edged out fellow Dutchman Nieky Holzken to win by unanimous decision, capturing the inaugural ONE Lightweight Kickboxing World Championship.
Both fighters put on an impressive display of world-class striking throughout the entire five-round bout.
Eersel’s jabs and knees in the latter part of the bout, was enough to earn the nod on all three of the judges’ scorecards.
Official results for ONE: ENTER THE DRAGON
ONE Lightweight World Championship bout: Christian Lee defeats Shinya Aoki by TKO (Strikes) at 0:51 minutes of round 2
ONE Lightweight Kickboxing World Championship bout: Regian Eersel defeats Nieky Holzken by Unanimous Decision (UD) after 3 rounds
ONE Featherweight Kickboxing World Grand Prix Quarter-final bout: Petchmorakot Petchyindee Academy defeats Giorgio Petrosyan by Split Decision (SD) after 5 rounds
ONE Featherweight Kickboxing World Grand Prix Quarter-final bout: Samy Sana defeats Yodsanklai IWE Fairtex by Unanimous Decision (UD) after 3 rounds
Mixed Martial Arts Lightweight bout: Cosmo Alexandre defeats Sage Northcutt by Knockout (KO) at 0:29 minutes of round 1
ONE Lightweight World Grand Prix Semi-final bout: Saygid Guseyn Arslanaliev defeats Amir Khan by Knockout (KO) at 2:56 minutes of round 1
ONE Flyweight World Grand Prix Alternate bout: Geje Eustaquio defeats Kim Kyu Sung by Unanimous Decision (UD) after 3 rounds
Mixed Martial Arts Strawweight bout: Miao Li Tao defeats Dejdamrong Sor Amnuaysirichoke by Knockout (KO) at 4:09 minutes of round 1
ONE Featherweight Kickboxing World Grand Prix Quarter-final bout bout: Jo Nattawut defeats Sasha Moisa by Technical Knockout (TKO) at 1:24 minutes of round 3
Mixed Martial Arts Strawweight bout: Yoshitaka Naito defeats Alex Silva by Unanimous Decision (UD) after 3 rounds
Mixed Martial Arts Featherweight bout: Garry Tonon defeats Yoshiki Nakahara by Submission (Heel Hook) at 0:55 minutes of round 1
ONE Featherweight Kickboxing World Grand Prix Quarter-final bout: Dzhabar Askerov defeats Enriko Kehl by Unanimous Decision (UD) after 3 rounds
Mixed Martial Arts Women’s Atomweight bout: Mei Yamaguchi defeats Laura Balin by Submission (Armbar) at 3:46 minutes of round 1
Mixed Martial Arts Lightweight bout: Iuri Lapicus defeats Shannon Wiratchai by Submission (Rear Naked Choke) at 3:10 minutes of round 3
ONE Featherweight Kickboxing World Grand Prix Alternate bout: Daniel Dawson defeats Brown Pinas by Split Decision (SD) after 3 rounds
Mixed Martial Arts Lightweight bout: Rahul Raju defeats Richard Corminal by Submission (Rear Naked Choke) at 4:43 minutes of round