2016-2018: Produce 101 & MIXNINE
In 2016, SiHyeon participated in Mnet's survival television show, Produce 101 as a trainee representing Star Empire Entertainment. She was eliminated in Episode 8 with her final rank being 84th place.
On September 16, 2019, Star Empire's affiliate label, Rising Star Entertainment, announced that Empire Girls would be officially debuting under the name ARIAZ in October. The same day, SiHyeon was the fourth member to be revealed through a teaser concept photo.
- Her favorite colors are white, black, pink and green.
- ↑ Produce 101: Episodes 1-8
- ↑ MIXNINE: Episodes 1-10
- ↑ Soompi: Star Empire Label To Launch New Girl Group ARIAZ With “Produce 101” And “MIXNINE” Trainees
- ↑ Twitter: ARIAZ - introducing third member, SiHyeon