Peppertones (Hangul: 페퍼톤스), is a Korean rock band formed in 2003 by Shin Jae-pyung and Lee Jang-won.

Shin Jae-pyung and Lee Jang-won both graduated from the Department of Computer Science at KAIST.

[2] Lee Jang-won's band then was named "Triangular Rice Balls and Konjac Jelly" (삼각 주먹밥 과 곤약젤리) because he was eating just these two food items to save money to buy a guitar.

[2] The band built its reputation by performing live in Hongdae clubs with Deb and Westwind, who played the guest vocal roles.

[9] He has also written songs for other artists, most notably K-pop girl group f(x), singer-actress Park Ji-yoon, and singer Baek A-yeon.