Hartono's first claim to fame was in 2005, when he won the Teenage Icon talent contest.
At 15, he scored his first major gig in 2005's ChildAid, a concert that raises money for The Straits Times School Pocket Money Fund and The Business Times Budding Artists Fund.
He took the stage for ChildAid the following year.
In 2006, the Anglo-Chinese (Barker) alumnus released his debut album, Let Me Sing! Life, Love And All That Jazz.
He went on to release two more albums - Feeling Good With Nathan Hartono (2007) and Realise (2009) - and was featured regularly at national events such as the National Day Parade and the Youth Olympics.
Hartono's first acting stint was with Pangdemonium Productions' play, Spring Awakening, in 2012.
He made his television debut three years later playing a musician on HBO Asia's dark fantasy series Halfworlds.
Hartono took part in Sing! China after the show's producers approached him.
He made history on Sept 30 when he became the first Singaporean to make it to the final of Sing! China.
LOVE AND HATE
While Hartono, who studied music production and engineering at the prestigious Berklee College of Music, received much love from Singaporeans, in China, netizens were more than eager to sling mud at him. There was even a conspiracy theory that he pulled strings to get into the final.
It was a big deal to Hartono to perform at the Beijing National Stadium and the duet with mentor Jay Chou was the icing on the cake.
The possibility of collaborating with the Taiwanese superstar after the competition is high, too.
Hartono will be back in Singapore to perform at the StarHub TVB Awards on Oct 22 at Marina Bay Sands.
- Kimberly Lim