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Just announced: John Mayer, J.Cole, Ne-Yo. Jill Scott and Grace Potter join The Roots for July 4th WaWa Welcome America #phillyjam

2012 NAMM Show - Media Preview Day Questlove and Black Thought from The Roots have announced the lineup to this year’s Philly 4th of July Jam as part of the WaWa Welcome America! The lineup includes John Mayer, Ne-Yo, J.Cole, Demi Lovato, Grace Potter, and Jill Scott. You can get more information about all the WaWa Welcome America festivities here.

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