I just realized that the closest modern day thing we have to a D&D bard would be an American musical gunslinging cowboy from the 30s, like Gene Autry.
Who else is known for both adventuring and manly fighting skills like fisticuffs and revolver duels, but also for inspirational music?
It makes me want to run a bardic musical cowboy character in someone's D20 modern campaign.
EDIT: http://youtu.be/-akgDjpcD2M