During the second show of her four night run at the brand new Revel resort and casino in Atlantic City on Saturday night, Beyonce Knowles sang her feminist club banger "Run The World (Girls)" and many other other crowd pleasers besides - yes, single ladies, she did "Single Ladies (Put A Ring On It)" - in a highly energetic show in which both breathless booty-shaking workouts and respect-demanding heartsick ballads were delivered with almost frighteningly impassioned intensity.

But on this night, the better half of the most formidable couple in pop music wasn't even the most
powerful woman in the sold-out 5050 capacity room. Instead, that would have been Michelle Obama, the First Lady of the United States. A few minutes before Beyonce hit the stage, FLOTUS, whose presence at Revel had been rumored but unconfirmed since mid-afternoon, walked in with daughters Sasha and Malia in tow, waving to the crowd from a box to the right of the stage, in a sleeveless green dress.

Beyonce's two hour set included tributes to Donna Summer and Whitney Houston, and a cover of Lauryn Hill's "Ex-Factor." For her first shows since giving birth to her much celebrated daughter Blue Ivy Carter in January, the impressively svelte singer told the crowd she had lost 60 pounds and planned, after the show, to "get chocolate wasted."

It's not all about Beyonce in Atlantic City this weekend. Okay, maybe it is. But there are a lot of other name-brand acts playing down the shore this Memorial Day weekend, besides Mrs. Jay-Z at the brand new Revel casino. Like Pitbull at the Borgata tonight, Southside Johnny and the Asbury Jukes at the Tropicana on Saturday and comedian Kevin Hart at the Etess Arena at the Trump Taj Mahal on Sunday. 

Philadelphia says Happy 71st Birthday to Bob Dylan at Rembrandt's tonight when 40 singers sing that many different songs written by the man born Robert Zimmerman on this day in 1941, starting with Kenn Kweder doing "Love Minus Zero / No Limit" at 7 and finishing off with Jan Zarkin's "Knockin' On Heaven's Door" probably round about midnight.

I saw these guys at the Dave Matthews Caravan festival in Atlantic City last summer, and it made for an entertaining pre-Flaming Lips Friday afternoon. The spangly suit-wearing alter ego of the hard-core band The Bronx who, naturally, are from Los Angeles, Mariachi El Bronx are fronted by singer Matt Caughthran, and they're serious about what they do. Thankfully, this is not a kitschy affair, as the video for "Holy," and their 2011 self-titled second album demonstrate. And if that floats your boat, check out their cool cover of Prince's "I Would Die 4 U" here.  Tonight at JB's, Two Gallants open.

Pearl Jam, the Seattle grunge survivors fronted by Eddie Vedder who closed down the Spectrum in South Philadelphia in 2009 with four sold-out shows, will headline the Made in America festival in Philadelphia on Sept. 1-2 along with Jay-Z.

Other notable acts added to the lineup on Monday, according to Live Nation, include Skrillex, the electronic producer and DJ (born Sonny Moore) who won three Grammy Awards this year and has become the face of dubstep, the throbbing, bass-heavy dance music; Maybach Music, the alliance of hip-hop heavyweight Rick Ross, Washington rapper Wale, and Philadelphia’s Meek Mill; the formerly reclusive, now resurgent soul man D’Angelo; Dutch DJ Afrojack; the acclaimed Brooklyn indie-rock band Dirty Projectors; genre-smashing avant-pop acts Janelle Monáe and Santigold (the Philadelphia-reared songwriter Santi White); controversial hip-hop collective Odd Future, and indie-electro band Passion Pit.

Pearl Jam, the Seattle grunge survivors fronted by Eddie Vedder who closed down the Spectrum in South Philadelphia in 2009 with four sold-out shows, will headline the Made In America festival along with Jay-Z. The band's web site confirmed the show this afternoon.

Last week, Jay-Z and Mayor Michael Nutter announced that the two-day festival would be happening on the Benjamin Franklin Parkway on Labor Day weekend.

Until this afternoon, however, we didn't actually know who would be playing the Budweiser sponsored fest, other than Jay-Z himself, who will headline the one of the two nights on the biggest of the ticketed event's three stages.

Hey world, were you really surprised that Mick Jagger was as good as he was on Saturday Night Live? The geezer is a consumate professional, and he's got someone's eye to stick a needle in since his co-worker Keith Richards got all that love for his memoir Life in which he went on about how Mick has a "tiny todger." 

It’s been over a decade since the great Texas songwriter Butch Hancock - who along with his pals Joe Ely and Jimmie Dale Gilmore is one of The Flatlanders – played a solo show in Philadelphia. So that qualifies toight's gig in the upstairs band room at Fergie's Pub on Sansom Street in which Hancock enthusiast John Train will be opening, as something of a special occasion.

Kindness, the seven-piece Adam Bainbridge fronted British funk-electro-pop band that were one of the breakout buzz acts for those in the know at SXSW this year, play Dave Pianka's Making Time 12th anniversary party at Voyeur tonight. Logistical details and a DJ list are here.  "Gee Up," is below.