8090 also known as Kuàilè Tiān Tuán 8090 (快乐天团8090, Happy Boys Group 8090) is a five-member Chinese boy group that debuted in 2010 under EE-Media.
They originally debuted as a seven-member group, but in May 2011 it was announced that Lu Xin You left the group to start a solo career. Two months later Xu Jia Wei also left, the reason for his leave is unknown.
All members were participants in the 2010 season of Super Boy and placed eight.
-  Liúxīngyǔ (流星雨, Meteor Shower) (Cover Album)
-  Xìngfú bǎi mǐ (幸福百米, One Hundred Meters Of Happines)
-  Super Boy Season 2 (快乐男声)
-  Runaway Sweetheart (落跑甜心)
-  BUTTERFLY BEYOND - 蝶变·超越
- Official Fanclub: Fēngchē (风车, Windmill)
- Official Color: Turquoise