JinJoo Lee (Korean: 이진주; born November 15, 1987) is a Korean-American musician, best known as the guitarist for the pop rock band DNCE.

[1] JinJoo Lee was born in Incheon, South Korea on November 15, 1987.

Lee taught herself to play guitar at the age of 12, to join her family's band as the guitarist.

[2] She moved to Los Angeles at 19, where she learned English and attended the Musicians Institute in Hollywood.

[4] Lee has performed with JoJo, the Jonas Brothers, Charli XCX, Jordin Sparks, and CeeLo Green's all-female backing band, Scarlet Fever in 2010-11.