You'll be surprised who made the list and who didn't
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Michael Franti & Spearhead
Why: Music with a message that you can dance to. Don't even try not to smile when Franti is spreading his brand of conscious hip hop around. A great communal experience.
When:Saturday, April 17
[Left, Michael Franti of Spearhead performs at the Bonnaroo music festival in Manchester, Tenn., Friday, June 15, 2007.]