Weerayut Chansook (วีรยุทธ จันทร์สุข; born October 30, 1991), nicknamed Arm (อาร์ม), is Thai actor, singer, host, youtuber and model under GMMTV. In 2015, he graduated with a bachelor's degree from the Faculty of Fine Arts at Srinakharinwirot University, majoring in Acting and Directing. In 2007, Arm participated in the Luk Thung Star Contest where he placed as first runner-up. Later, he enrolled in a singing school. Arm started in the entertainment industry in 2010 as an artist under the record label RS Public Company Limited. With his singing and dancing abilities, he was selected as a member of Rookie BB, a boy band under the management of RS Music, along with Iang Sittha Sapanuchart and Pop Supasit Chinvinijkul. He made his acting debut in 2016 with a supporting role in the series "Senior Secret Love: Bake Me Love" (รุ่นพี่ Secret Love ตอน Bake Me Love). Aside his acting and singing career, Arm has become known for his fashion and styling skills through his lifestyle program "Arm Share". He owns two clothing brands: Homles and AWC. He's also the owner of AWC Studio.

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