During O'Connor's early musical career, he went under the name Lil' Nizzy, in reference to his father, Ty Nizzy. Under the name Loski, he released his breakout single "Hazards" in 2016. In March 2018, Loski was signed to
Sony Music Entertainment. The following month, he released his debut
mixtape Call Me Loose, In an article with MTV, Loski stated that the mixtape was about "the neighbourhood, friends, everything growing up." The following year, he released the mixtape
Mad Move, which peaked at number 41. An article in Versus noted that the mixtape "sees the south Londoner plant himself firmly at the fore of the genre." In 2020, Loski released his debut album,
Music, Trial & Trauma: A Drill Story, which peaked at number 39 on the UK Albums Chart and was noted as being "several albums at once." Robert Kazandjian, writing for
Clash, stated that the album was divided into three acts, with the album as a whole mainly centered around legal issues. In September 2021, Loski announced his debut EP,
Censored. The EP was released on 15 October; an article in
Trench noted that "although the extensive cast of producers keep the
Censoreds sound close to Loski's drill roots, the rapper's evolution is laid bare as he attacks each track with an effortless display of lyrical greaze." He jointly holds the record for most top 75 hits in the UK without having a top 40 hit with fellow British rapper
Unknown T. ==Criminal convictions==