Lee Sung-yeol
A foundational member of Infinite, whose deep voice and comedic charm provided the steady backbone for one of K-pop's most synchronized groups.
Born 1991 (age 35)·South Korean singer and actor·Birthday: August 27·Millennials
Biography
Lee Sung-yeol entered the K-pop scene not as a typical vocal powerhouse, but as a vital piece of a perfectly engineered whole. Debuting in 2010 as a member of Infinite, a group famed for its military-precision choreography, Sungyeol found his niche. His rich baritone added warmth and depth to the group's harmonies, offering a contrast to the sharper tones of his bandmates. While others took more flashy center stages, Sungyeol became beloved for his off-stage personality—the group's designated mood-maker known for his loud, infectious laugh and playful antics on variety shows. This duality defined his career: the serious performer executing complex dance moves flawlessly, and the relatable, funny idol who connected deeply with fans. His work with the sub-unit Infinite F further showcased his vocal abilities, and his foray into acting demonstrated a quiet ambition to expand his artistic range beyond the idol identity.
Millennials
1981–1996
The first digital natives. Grew up with the internet, came of age during 9/11 and the 2008 crash. Highly educated, deeply indebted, slower to marry and buy houses. Redefined work, identity, and what it means to be an adult.
Lee was born in 1991, placing them squarely in the Millennials. The events that shaped this generation — the internet revolution, 9/11, and the 2008 financial crisis — shaped the world they entered and the choices available to them.
#1 When Lee Was Born
The biggest hits of 1991
#1 Movie
Terminator 2: Judgment Day
Best Picture
The Silence of the Lambs
#1 TV Show
Cheers
Lee's Life & Times
The world at every milestone
1991Born
Soviet Union dissolves; World Wide Web goes public
Gas: $1.14/galHome: $82,400Min wage: $4.25/hrPresident: George H.W. Bush"(Everything I Do) I Do It for You" — Bryan AdamsBest Picture: The Silence of the Lambs
1996Started school
Dolly the sheep cloned
Gas: $1.23/galHome: $99,700Min wage: $4.75/hrPresident: Bill Clinton"Macarena" — Los del RioBest Picture: The English Patient
2004Became a teenager
Indian Ocean tsunami kills over 230,000
Gas: $1.88/galHome: $157,300Min wage: $5.15/hrPresident: George W. Bush"Yeah!" — UsherBest Picture: Million Dollar Baby
2007Could drive
iPhone released; Great Recession begins
Gas: $2.80/galHome: $172,600Min wage: $5.85/hrPresident: George W. Bush"Irreplaceable" — BeyonceBest Picture: No Country for Old Men
2009Could vote
Michael Jackson dies; Bitcoin created
Gas: $2.35/galHome: $148,500Min wage: $7.25/hrPresident: Barack Obama"Boom Boom Pow" — The Black Eyed PeasBest Picture: The Hurt Locker
2012Turned 21
Curiosity rover lands on Mars; Sandy Hook shooting
Gas: $3.64/galHome: $143,200Min wage: $7.25/hrPresident: Barack Obama"Somebody That I Used to Know" — GotyeBest Picture: Argo
2021Turned 30
January 6 Capitol breach; COVID vaccines roll out globally
Gas: $3.01/galHome: $298,900Min wage: $7.25/hrPresident: Joe Biden"Levitating" — Dua LipaBest Picture: CODA
2026Age 35 today
Gas: $3.91/galPresident: Donald Trump
Key Achievements
- Debuted as a member of Infinite, a group known for 'knife-like' synchronization that became a hallmark of second-generation K-pop.
- Promoted as part of the vocal sub-unit Infinite F, releasing the EP 'Azure' in 2014.
- Acted in several Korean dramas and web series, including 'The Best Moment' and 'Love Revolution.'
Did You Know?
He is known for having exceptionally large hands, a trait frequently mentioned by fellow members and fans.
Sungyeol is an only child.
He and Infinite member Lee Sung-jong (Sungjong) were roommates for many years and are known for their close friendship.
He majored in Practical Music at Daekyeung University.
“My voice is one color in our group's picture, and that picture needs every shade.”
