Journey
kiss
Incubus Ivoryline
Pink Floyd
A gathering
Counting Crows the Cure the Cadillacs
The music performed by G Love band is a mix of alternative hip-hop, blues rock and alternative rock. The G Love band is an American group from Philadelphia PA.
The only group which I can think of that fits the requirements is the rather obscure band "CirKus"
Joan Jett & the Blackhearts was a 1980's musical group. Joe Mullins & the Radio Ramblers is a Bluegrass and Gospel music group.
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A mood starting with G is generous.
An attitude starting with G is gracious.