Nguyen, who goes by the alias "B-Boy Junior," became a professional breakdancer at age 19 after placing third in the Red Bull BC One Finals (2012). Junior would proceed to win the Red Bull BC One World Final Championship in Switzerland twice (2015, 2016) and take the title of World Championship three times (2015, 2016, 2019), becoming the first and only breakdancer to have achieved both feats. Moreover, he earned first place at the 2018 Battle of the Year International Championship, an accolade often regarded as the most prestigious in breakdancing.
In 2021, Junior placed among the top 16 breakdancers in the world and qualified to represent Team USA in the first ever Olympic Summer Games breakdancing competition, which took place in Tokyo, Japan. In addition, he secured the silver medal in the 2021 World Games held in Budapest, Hungary, and captured a bronze medal during the 2021 Hip Hop Games in Montpellier, France. Nguyen currently resides in Orange County, California, while touring globally as an elite professional breakdancer and as a choreographer and ambassador for Red Bull.