GA-20

GA-20 is an American blues band from Boston, Massachusetts, made up of Matthew Stubbs, Cody Nilsen and Josh Kiggans. Its name comes from the guitar amplifier made by Gibson from 1950 to 1961. The band plays mainly Chicago blues.

In 2018, GA-20 was nominated at the Boston Music Awards in the blues artist of the year category, a nomination it received eight years running. The band won the blues artist of the year award in 2019, 2021, 2022, 2023, 2024 and 2025. It received its first Blues Music Award nomination in 2022, in the best emerging artist category. In 2023, GA-20 was nominated in the blues band of the year category, and its album Live In Loveland was nominated for live blues album by the Blues Blast Awards. The band won the blues act of the year award at the 2024 New England Music Awards.