The Greyboy Allstars are an American soul-jazz band from San Diego, California, United States, whose current members include Karl Denson on Saxophone, Robert Walter on Keys, Mike Andrews (under the pseudonym Elgin Park) on guitar, Chris Stillwell on bass and Aaron Redfield on drums.

The founding members included Denson, guitarist Mike Andrews (under the pseudonym Elgin Park),[2] keyboardist Robert Walter, bassist Chris Stillwell, and drummer Zak Najor.

Their debut album, West Coast Boogaloo, was self-released in 1994, and featured Fred Wesley on Trombone of James Brown fame.

After dominating the jam-jazz scene of the ’90s, "the band parted ways in late 1999 to allow its members to take the creative steps necessary to stay musically fresh."

[4] Robert Walter revealed that “Zak is not touring with us anymore, he is on the album and he is a big part of the album, but he just doesn’t want to go on the road at all.”[3] The band played several live shows with new drummers including Eric Kalb and Alan Evans (from Soulive) before current GBA drummer and San Diego native Aaron Redfield officially joined the band.