The year she turned 24, she joined KBS in its 43rd open recruitment class of announcers and presented regional news at the Gwangju station.
The breakthrough yearThe year she turned 26, she became the new host of KBS2’s Entertainment Weekly. Edaily writes that she made her face known by hosting the program and Fluttering Night. In October she also became host of The Golden Bell Challenge.
In 2019, she was DJ of Fluttering Night, I’m Lee Hye-sung, and in November Entertainment Weekly, which she hosted, ended. In 2020, she left KBS and became a freelancer. In September she signed an exclusive contract with SM C&C, and in December she started tvN’s Naked World History.
In 2021, she appeared in SBS FiL’s Teacher of Narat as a teacher of Korean. In 2022, she was host of TV Chosun’s Manbok Sikdang. In 2023, she made a cameo in JTBC’s King the Land and appeared as a player in Netflix’s The Devil’s Plan.
In 2024, she was pre-show MC for the 2024 MAMA Awards. In 2025, she became an ambassador for the Korea Deposit Insurance Corporation, and in June she opened a YouTube channel about books.
In 2026, she left Naked World History and took part in MBN’s Cheonha Jeppang. In July her YouTube channel passed 300,000 subscribers.
Lee Hye-sung (born Nov 26, 1992) joined KBS in its 43rd open recruitment class of announcers in 2016, the year she turned 24, and became known on Jun 29, 2018, the year she turned 26, as the new host of KBS2’s Entertainment Weekly. In 2020, the year she turned 28, she left KBS and became a freelancer.
Ages are by calendar year (the year minus the birth year), birthdays aside.