[1][2] Starting off in the punk outfit Struggle in 1994, ensuing projects such as Swing Kids, The Locust, Dead Cross and Retox.

He has collaborated with Kool Keith, Gabe Serbian, Karen O, Nick Zinner, Adam Gnade, Invisibl Skratch Piklz, Asia Argento, The Bloody Beetroots, Silent, among many others.

[4] He also began skateboarding and listening to the Thrasher skate/rock compilation tapes with bands like Septic Death, the Sex Pistols, The Misfits,[5] and Suicidal Tendencies.

[7] Pearson also got into break dancing and early rap like Run DMC and the Beastie Boys, as well as developing an interest in metal.

[8] Pearson was soon exposed to the distinctive San Diego hardcore punk scene[7] and began attending all the all-ages shows he could,[8] discovering influential local bands such as Amenity, Heroin, Forced Down, Drive Like Jehu, and Crash Worship.

[6] Pearson also attended metal shows at house parties, eventually discovering Che Café,[8] an all-ages venue on the campus of UC San Diego.

[11] Pearson played bass alongside vocalist Dylan Scharf, drummer Jose Palafox and guitarists Eric Allen, Tobias Nathaniel and Cliff Cunningham.

Pearson served as vocalist and sole lyricist, and has described the themes as largely influenced by social political issues.

Swing Kids are also credited with the unintentional creation of the fad "Spock Rock" during the mid-1990s; largely due to many of their fans emulating Pearson's fashion sense and hair style.

After a number of personnel changes, they arrived at the current four-piece lineup in 2001, consisting of Bray, Pearson, Joey Karam and Gabe Serbian.

[12] The band regularly played shows in all-ages punk clubs in Los Angeles and San Diego,[13] usually donning insect costumes.

[12] Some Girls began in early 2002 when singer Wesley Eisold and guitarist Rob Moran spoke of putting together a hardcore band that would "fuck people up."

The very next day, drummer Sal Gallegos was called in to assist Eisold and Moran and, within a few hours, the first Some Girls songs were created.

[28][29] Planet B made contributions to the Incompresa soundtrack, their live debut at the San Diego Public Library in conjunction with a screening of the film.

In 2024, they released their sophomore album "Fiction Prediction" on Three One G which featured multiple guests and was a "a second heaping helping of their turntable-infused, cult-horror-movie-score-worshiping, hardcore-punk-saturated soup" [30] Pearson and Dave Lombardo had both individually previously worked with producer Ross Robinson, who asked Pearson to play on Poppy Jean Crawford's demo as a session bassist.

[31] Dead Cross was officially formed on November 30, 2015, by Crain, Pearson, Lombardo and vocalist Gabe Serbian.

The band is currently made up of vocalist Justin Pearson (The Locust, Head Wound City), guitarist Brian Amalfitano (ACxDC), bassist Jason Klein (Run With The Hunted), and drummer Scott Osment (Glassing, Weak Flesh).

They are "a savage sound bath dripping with sardonicism: a blastbeat-centric hardcore punk assault channeling crust, thrash, and grind (un)sensibilities.

Succinct pauses, surreal frequencies and effects, breakneck pace and sharply hurled vocals characterize the band’s aesthetic, which seems as though it is rooted in a sort of nasty-sound-meets-highbrow-message ethos.

In 2024, a split EP with Fuck Money was released on Sub Pop and ]Three One G which featured a cover version (with HIRS Collective) of "Tourette's" by Nirvana (band).

It consists of Pearson on vocals, Nathan Joyner on guitar, Jung Sing on drums, and Eric Livingston on synthesizers.

[36] They released the self-titled album on Three One G which featured guests such as Travis Ryan (Cattle Decapitation), Jung Sing (Silent), Shiva Honey,[37][38] and Steve-O amongst others.

The first record released on the new label was the 1994 single "And / Fall On Proverb" by San Diego metalcore band Unbroken.

[40] He funded the label with the financial aid he was receiving from the community college he was attending,[8] and has stated he was partly inspired to start 31G by Vinyl Communications and Gravity Records.

[42] While widely known for his performance on an episode of The Jerry Springer Show in the late 1990s, Justin has more recently taken part in numerous other acting roles.

[46] Pearson became a vegetarian in his early teens for ethical reasons, inspired by aspects of the punk community, especially the group Downcast and reading No Answers fanzine.

Over the years, guests have included John Waters, Michael Malarkey, members of Napalm Death, Lucien Greaves, and many others.