1. Lai Kuan-lin, romanized as Lai Guanlin and better known mononymously as Guanlin, is a Taiwanese rapper, singer, actor, and film director.

1. Lai Kuan-lin, romanized as Lai Guanlin and better known mononymously as Guanlin, is a Taiwanese rapper, singer, actor, and film director.
Lai Kuan-lin is known for finishing seventh on second season of reality competition series Produce 101 and was a member of the South Korean boy band Wanna One.
Lai Kuan-lin formed a duo with Pentagon's Wooseok as Wooseok x Kuanlin in March 2019, under Cube Entertainment.
Lai Kuan-lin was recruited by Cube Entertainment during the Cube Star World Audition in Taiwan in 2016.
In 2017, Lai Kuan-lin participated in the second season of Produce 101, representing Cube Entertainment.
Lai Kuan-lin ranked seventh during the final episode with 905,875 votes, securing him a place in the show's project boy group Wanna One under YMC Entertainment.
In November 2017, Lai Kuan-lin appeared in labelmate Jeon So-yeon's music video for her single "Jelly".
Lai Kuan-lin was confirmed to be the guest on variety show Happy Camp.
In January 2019, Lai Kuan-lin was confirmed as male lead in Chinese drama A Little Thing Called First Love.
On 20 February 2019, Cube Entertainment announced that Lai Kuan-lin would participate in a new group project alongside Pentagon's Wooseok titled Wooseok x Kuanlin.
In July 2019, Lai Kuan-lin requested to terminate his contract with Cube Entertainment.
One of the claims Lai Kuan-lin made was that Cube Entertainment had sold his artist management rights in China to a third party without notifying him.
In June 2020, Lai Kuan-lin was cast in youth drama Don't Think About Interrupting My Studies as the main lead, Lin Xiao Ran, alongside Li Landi as Nan Xiangwan.
In 2021, Lai Kuan-lin debuted as film director for the short film Em Chu Em Nie Zi Bo.
Lai Kuan-lin won best director while the short film won Best of Fest, Best Cinematography, Best Leading Actress and Best Costume Design.
In June 2024, Lai Kuan-lin was photographed with a female companion, sparking rumors of a romantic relationship.
In 2018 and 2019, Lai Kuan-lin became an ambassador for Dr Jart+, MGTV International APP, Chinese Social Assistance Foundation and Green Carpet Action.
Lai Kuan-lin has endorsed Nongfu Spring, TBJ, L'Oreal and Downy, KM Pharmaceutical, Perfect Diary, VIVLAS Lipstick, Wolong Nuts and elleair.
In March 2021, Lai Kuan-lin announced support for cotton from Xinjiang in mainland China, after some companies had expressed concerns about human rights abuses.