One month after the show ended, he began his solo career, with the release of his debut extended play (EP) Sixteen on August 2, 2017.

Samuel was born in Los Angeles, California,[2] to a Mexican father (José Arredondo) and a South Korean mother.

[12] In April 2017, Samuel participated in the second season of the popular survival show Produce 101 under his own name, representing Brave Entertainment.

[22] In March 2018, Samuel released his second mini album, One, with the title track "One" featuring BtoB member Jung Il-hoon.

On May 30, 2018, Samuel released his repackaged album, Teenager, featuring Lee Ro Han, who was a runner-up to MNet's "School Rapper Season 2".

[citation needed] In June 2019, Samuel announced to work independently onwards, filed a name trademark, and set-up a one-man agency.

[1] On July 16, 2019, Samuel's father José Arredondo was found dead at his condo in Cabo San Lucas, Mexico.