The group was formed as a new project from the three remaining members of DEEP by adding three new members who were the winners of the DEEP VOCALIST AUDITION in 2019.
On July 22, 2019, a live event titled DEEP VOCALIST AUDITION ~FINAL STAGE~ was held at Akasaka BLITZ where the members of DEEP revealed that the group would continue activities as a trio. However, they also started a new entertainment project titled "DEEP SQUAD", including three new members who were the winners of the audition out of 12.000 contestants: Uhara Yuhi, Sugiyama Ryoji and Higa Suzuki.
On June 16, 2020, it was announced that DEEP SQUAD would make their official debut on July 22 with the digital single "Get With You", exactly one year after their formation. On the same day as the announcement, the group opened their official YouTube channel and Twitter and Instagram account.
On October 30, the group will release the digital single "Good Love Your Love". The song will be used as ending theme song of the drama 30sai made Doutei da to Mahoutsukai ni Nareru Rashii.
- [2020.10.30] LEMON FRIDAY - EXILE SHOKICHI & DEEP SQUAD
[2020.03.26, 2020.04.05] LDH PERFECT YEAR 2020 SPECIAL STAGE ~MUSIC BOX~
- [2020.11.21] DEEP SQUAD PREMIUM LIVE 2020 "NEW STORY"