Summertime in Philly always marks another hot party (especially with the weather today) at Festival Pier as The Roots Picnic delivers another diverse lineup courtesy of the City of Brotherly Love’s favorite sons of hip hop. This year The Roots will be doing their usual double duty during the fest as they’ll be headlining and backing the legendary Naughty By Nature in a special reunion jam performance. You will also find exciting sets from featured guests such as Gary Clark Jr., Grimes, Solange, How to Dress Well and local rising star Lushlife. Festival Pier at Penn’s Landing, Columbus Blvd. & Spring Garden St., 12pm, SOLD OUT, All Ages – Bill McThrill