The Roots Picnic

Sat., June 7, 2 p.m., $49.50, with the Roots, Gnarls Barkley, Sharon Jones and the Dap-Kings, Diplo, J*Davey, Santogold, Deerhoof, The Cool Kids, Esperanza and more, Festival Pier at Penn's Landing, Delaware Avenue and Spring Garden Street, 215-336-2000, livenation.com

by Deesha Dyer

hip-hop

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June 21? Burn your calendar. Summer starts Saturday when hometown hip-hop hometown godfathers the Roots bombard Penn's Landing with support from all over the musical spectrum. One of the most anticipated openers, of course, is Gnarls Barkley, and the big mystery is who Danger Mouse and Cee-Lo will show up as. The duo is as well-known for playing dress-up as for their progressive twist on hip-hop. My suggestion? Keep it Philly-themed: Hall & Oates, Jazzy Jeff and the Fresh Prince, Donovan McNabb and T.O. Something like that. Sharon Jones and the Dap-Kings will also come correct with some old-time soul and big-band instrumentation. The bill also includes funk/new wave duo J*Davey, indie rock experimentalists Deerhoof and Hollertronix alums Diplo and Santogold. Don't be surprised if a whole lot of surprise guests pop up, as well. But act surprised. Festivities continue at the official Tastytreats afterparty at Fluid where ?uestlove will man the decks and pay tribute to Prince, on the occasion of his 50th birthday.

Sat., June 7, 2 p.m., $49.50, with the Roots, Gnarls Barkley, Sharon Jones and the Dap-Kings, Diplo, J*Davey, Santogold, Deerhoof, the Cool Kids, Esperanza and more, Festival Pier at Penn's Landing, Delaware Avenue and Spring Garden Street, 215-336-2000, livenation.com; afterparty, 10 p.m., $7 (ladies free until 11 p.m.), Fluid, 613 S. Fourth St., 215-629-3686, fluidnightclub.com.