Creepy Nuts are a Japanese Hip Hop pair comprised of R-Shitei and DJ Matsunaga. R-Shitei, whose rap name means “R-Rated,” spouts fast-paced rhymes over his partner’s catchy tracks. The duo was formed in 2015 and released their first mini album in January 2016. R-Shitei had slowly been making a name for himself in the Japanese Hip Hop world before the formation of the group. At the beginning of his career, he gained success in Japanese freestyle rap battle competitions, winning several ULTIMATE MC BATTLE titles between 2009 and 2014. He retired from competitive freestyling in 2014, and released his debut solo album, Second Opinion (セカンドオピニオン), in the same year, a handful of the tracks being produced by DJ Matsunaga. He eventually landed a role on Freestyle Dungeon, a late-night TV show hosted by notable grandfathers of Japanese Hip Hop. DJ Matsunaga has also been active in competitions, specifically Disco Mix Club's Japan and World DJ Championships. Since 2010 he has won the Japan championships twice, and the Battle for World Supremacy championships in 2019. He had also been releasing albums prior to Creepy Nuts' formation. The song Trench Coat Mafia featuring R-Shitei (トレンチコートマフィア feat. R-指定) from Matsunaga's second album Circus Melody (サーカス・メロディー) was eventually placed on Creepy Nuts' first full-length album Creep Show (クリープ・ショー). DJ Matsunaga performed alongside milet and Tokyo Ska Paradise Orchestra at the closing of the 2021 Summer Olympics in Tokyo. The duo also host the 6pm to 7:30pm Tuesday slot on radio show All Night Nippon.