The group name GASS comes from the first letters of their names: Greg Smyer, vocals and guitars; Andy Colclasure, vocals, bass guitar and drums; Stan Boggs, vocals and guitar; and Susie Knickerbocker, vocals and keyboard. They make their homes in Winfield, and Arkansas City, Kansas.
GASS is a gospel-singing group of four friends who sing and play to share Jesus through music. Gospel songs comprise most of their repertoire, along with an occasional secular song. Styles include southern gospel, contemporary worship, country and rockabilly.