The Justin Gilmore-Gresham Big Band (JGGBB for short) is an Los Angeles based ensemble that features some of the best young musical talent throughout Southern California.

The JGGBB sprung from a recital project that Justin was working on while attending the USC Thornton School of Music in 2021. This project truly became a passion of his that has blossomed into the thriving ensemble that know today. The members of the group are quite active within the music scene and have performed with the likes of The Phat Cat Swingers, Earth, Wind, and Fire, Chaka Khan, Beyonce, Patrice Rushen, The Los Angeles Philharmonic, Gordon Goodwin’s Big Phat Band, and The Disneyland Band to name a few.