Just who are The Sobernauts?

So, just who are The Sobernauts?
STUMPY SOBERNAUT:
A man who can hold his own guitar and shout at strangers.

THE ARTIST CURRENTLY KNOWN AS CHUMP SOBERNAUT:
Highly strung.

NOTES SOBERNAUT:
Profoundly attached to quarterly understatement.

GOLDEN GLOBES SOBERNAUT:
Yelling, strikes out at timeless objects without compunction.

SHIFTY SOBERNAUT:
Arranges care in shadowy halo and wave.

All of the above have performed in a multitude of fictitious bands, not one achieving global, or indeed local recognition.