Choo dropped out of his mechanical engineering course at Ngee Ann Polytechnic and subsequently enlisted into the army, citing having "no interest" in the course.
[4] He was a former sales supervisor before making his debut through the 1995 Mediacorp's Star Search competition where he was a semi-finalist.
[5] Since 2000s, Choo has been running a student care centre named Star Kidz Powerclub, at Block 509, Bedok North Avenue 3, and serves as the principal.
In February 2018, Choo was involved in a police case which was lodged by a parent of an eight-year-old boy.
[6][7] In an interview with Lianhe Wanbao in August 2019, Choo said he is a self-professed otaku and revealed that he is single.