Rainbow-hued hair dye has always been at the heart of a signature K-pop look. Members of groups such as BTS, Blackpink, EXO, Twice and Red Velvet change the colour of their hair several times a year, not only to fuel a new beauty trend, but as a signal to fans that new music is on the way. Bold neons or subdued natural shades are often chosen to match the theme of a new album, music video or tour concept. BTS debuted a vibrant array of blue, lilac, orange and pink hues for their Love Yourself “Answer” and “Her” tour concepts — a noticeable contrast to the all-brown ensemble for the Love Yourself “Tear” concept. Other Korean idols have used eye-catching dyes to establish their style icon status, such as Big Bang’s G Dragon or 2NE1’s CL.

Lilac Purple

Dahyun of Twice
Photo: Courtesy of Twice
Jimin of BTS
Photo: Dan MacMedan/Getty Images
Mark of GOT7 in the "Lullaby" music video
Photo: Courtesy of JYP Entertainment/Youtube
Dahyun of Twice
Photo: Courtesy of Twice
Jimin of BTS
Photo: Dan MacMedan/Getty Images
Mark of GOT7 in the "Lullaby" music video
Photo: Courtesy of JYP Entertainment/Youtube
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Fiery Orange

Lisa of Blackpink
Photo: @blackpinkofficial/Instagram
G Dragon of Big Bang
Photo: The Chosunilbo JNS/Getty Images
Jooheon of Monsta X
Photo: @official_monsta_x/Instagram
SHINee
Photo: Courtesy of SHINee
Seulgi of Red Velvet
Photo: SM Entertainment
Lisa of Blackpink
Photo: @blackpinkofficial/Instagram
G Dragon of Big Bang
Photo: The Chosunilbo JNS/Getty Images
Jooheon of Monsta X
Photo: @official_monsta_x/Instagram
SHINee
Photo: Courtesy of SHINee
Seulgi of Red Velvet
Photo: SM Entertainment
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Storm Grey

CL of 2NE1
Photo: Han Myung-Gu/Getty Images
Key of SHINee
Photo: Han Myung-Gu/Getty Images
Se Hun of EXO
Photo: Han Myung-Gu/Getty Images
CL of 2NE1
Photo: Han Myung-Gu/Getty Images
Key of SHINee
Photo: Han Myung-Gu/Getty Images
Se Hun of EXO
Photo: Han Myung-Gu/Getty Images
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Ariel Red

Joy of Red Velvet
Photo: SM Entertainment
G Dragon of Big Bang
Photo: Pascal Le Segretain/Getty Images
Lisa of Blackpink in "As If It's Your Last" music video
Photo: Blackpink/YouTube
V of BTS
Photo: @bts_v/Instagram
Joy of Red Velvet
Photo: SM Entertainment
G Dragon of Big Bang
Photo: Pascal Le Segretain/Getty Images
Lisa of Blackpink in "As If It's Your Last" music video
Photo: Blackpink/YouTube
V of BTS
Photo: @bts_v/Instagram
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Aqua Green

Nancy of Momoland
Photo: @MMLD_Official/Twitter
T.O.P of Big Bang
Photo: Han Myung-Gu/Getty Images
Jeongyeon of Twice
Photo: @twiceagram/Instagram
Sunny of Girls' Generation in "I Got A Boy" music video
Photo: Girls' Generation/YouTube
Nancy of Momoland
Photo: @MMLD_Official/Twitter
T.O.P of Big Bang
Photo: Han Myung-Gu/Getty Images
Jeongyeon of Twice
Photo: @twiceagram/Instagram
Sunny of Girls' Generation in "I Got A Boy" music video
Photo: Girls' Generation/YouTube
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Pink

HyoYeon of Girls' Generation
Photo: Courtesy of Girls Generation
Jisoo of Blackpink in "Ddu-Du Ddu-Du" music video
Photo: Blackpink/YouTube
JooE of Momoland
Photo: @MMLD_Official/Twitter
HyoYeon of Girls' Generation
Photo: Courtesy of Girls Generation
Jisoo of Blackpink in "Ddu-Du Ddu-Du" music video
Photo: Blackpink/YouTube
JooE of Momoland
Photo: @MMLD_Official/Twitter
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