Jay-Z and Mayor Nutter to Announce Labor Day Music Festival

Plus: DeSean Jackson's field sobriety test, Cole Hamels might ask for biggest contract ever, police investigate a City Hall staffer, and more of what Philly is buzzing about today.

Jay-Z and Mayor Nutter Set for Festival Announcement. Mayor Nutter will be alongside one of the world’s most successful rappers on the Art Museum steps at 10:30 this morning to announce a two-day music festival in Philly over Labor Day weekend. There will be 28 acts performing on three stages on September 1st and September 2nd. Tickets go on sale May 23rd. [Inquirer]

UPDATE: Mayor Nutter and Jay-Z pulled everybody down to the Art Museum today to confirm the dates and venue of the festival (September 1st and 2nd on the Parkway). The lineup will be unveiled on May 21st and two-day tickets—starting at $99—will go on sale on May 23rd. Oh, and ?uestlove says the lineup is “big enough to rival Philly’s Live Aid from 85.”

DeSean Jackson Was Pulled Over. DeSean Jackson was pulled over while he was driving to his charity event at Triumph Baptist Church on Saturday morning. Jackson was asked to complete a field sobriety test (it was 9 a.m.) and was eventually let go without a ticket. [TMZ]

Cole Hamels Wants a Seven-Year Contract. The biggest contract ever signed by a pitcher was a seven-year, $161 million deal between C.C. Sabathia and the New York Yankees. Hamels—who won again yesterday—will reportedly be looking for those kind of numbers. [Twitter]

Live Grenade Spurs Police Evacuation. A senior citizen said he purchased a radio at a flea market and heard a rattling inside. When he opened it up, he found a live grenade, which he promptly took to the home of the 2nd and 15th police districts in the Northeast. The building was evacuated, and the bomb squad took care of the situation. [Daily News]

Clean Blocks Are Safe Blocks. Penn researchers have found a correlation between beautifying vacant lots and a reduction in crime. [CBS 3]

Police Investigate City Hall Employee. The secretary for City Council President Darrell Clarke is under investigation regarding the case of a deaf, elderly woman who had been living under horrible conditions despite owning a home and receiving social security checks. The secretary was responsible for receiving the woman’s checks and paying for bills and other necessities. [Daily News]