I feel like I should have heard of this group before now. Such a great idea! I wish I was in a populated enough area to start something like this. The mission of the Urban Youth Harp Ensemble is “to deliver quality musical instruction on the harp, develop music reading skills and musicianship to at-risk, urban youth.” You can visit their official website at http://www.urbanharp.org/.
Here are some members of the group playing “What a Wonderful World” (the sound is a bit fuzzy but it’s still way cool):