On July 4, 2019, PSYCHIC FEVER made their first appearance at the BATTLE OF TOKYO ~ENTER THE Jr.EXILE~ live concert at Makuhari Messe.
On May 31, 2020, it was announced that HANATAROU had been suffering from poor health for a while and had decided to leave the group and end his activities under LDH JAPAN after discussing with the company. PSYCHIC FEVER would continue to work as an 8-piece group.
On July 16, 2021, it was revealed at the first concert of the Sandaime J SOUL BROTHERS LIVE TOUR 2021 "THIS IS JSB" that the group would be unveiling their pre-debut single "Hotline" on July 18 exclusively on their YouTube channel and that they would hold an online musha shugyo on TikTok starting on the same day. Additionally, several official SNS accounts for the group were opened.
- Original Songs
-  Hotline
- Music Video Appearances
-  GENERATIONS - "EXPerience Greatness" (all members except SAM)
-  BALLISTIK BOYZ - "ANTI-HERO'S"
- Tours Featured In
-  Sandaime J SOUL BROTHERS LIVE TOUR 2019 "RAISE THE FLAG"
-  Sandaime J SOUL BROTHERS LIVE TOUR 2021 "THIS IS JSB"
- Concerts Featured In
- [2019.07.04-2019.07.07] BATTLE OF TOKYO ~ENTER THE Jr.EXILE~
- [2019.12.31] LDH PERFECT YEAR 2020 COUNTDOWN LIVE 2019▶︎2020 "RISING"
- [2020.10.30] LIVE×ONLINE INFINITY HALLOWEEN
- [2019.10.05-2019.12.08] PSYCHIC FEVER Musha Shugyo
- [2021.07.18-] Musha Shugyo on TikTok