Wiz Khalifa, Afrojack to headline Forbes' 'Under 30 Music Festival' at the Piazza

Next month, Forbes magazine is putting on its first 'Under 30 Summit' in Philadelphia, a confab aimed at young tech entrepreneurs that aims to be a sort of mini-SXSW, with panel discussions, interview sessions and "Shark Tank"-style competitions taking place all day long at the Pennsylvania Convention Center on October 20 and 21.

All manner of bold face names will be in town, from Tinder co-founder Sean Rad to Shake Shack restauranteur Danny Meyer to America Online boss Steve Case to supermodel Petra Nemcova to Paypal's Peter Thiel to Sixers owner Josh Harris to Nobel Peace Prize winner Malala Yousafzai to, for some reason, Monica Lewinsky.

And of course, there's music. On Sunday October 19, the event kicks off with the 'Under 30 Music Festival,' which is really just one multi-act show happening from 4 to 9 at the Piazza at Schmidt's in Northern Liberties. The headliners are Nick van de Wall, the Dutch DJ-producer better known as Afrojack, and Wiz Khalifa, the weed-loving "Black and Yellow" Pittsbugh rapper whose wife of one year, Amber Rose, filed for divorce from him this week.

Also on the bill: LP, the New York songwriter Laura Pergolizzi, who's written songs for Christina Aguilera and Rihanna, and OCD: Moosh & Twist, the Philadelphia hip-hop duo who recently went over big at the Made In America festival.

The concert is in partnership with the Global Poverty Project, which puts on the humongous Global Citizen Festival happening tomorrow in Central Park in New York. Tickets for the Piazza show are free, but to get a chance to win them, you have to take "actions" to end extreme poverty. How do you do that? Go to www.globalcitizen.org/nights to find out.

Besides the show, there will be other music activity going on. Afrojack will have his own panel at the Convention Center on Monday morning. There's a 'Music Goes Moneyball' about how Big Data is telling you what to listen to, and a Food Festival cooking competition on Tuesday night whose judges include Roots drummer Ahmir "Questlove" Thompson.

Why Philadelphia? In his Under 30 Summit explainer, Forbes editor Randall Lane cited ease of access, and also said Philadelphia is "a world class city in every way - great food, history, business vitality, nightlife and culture - as validated this year by everyone from Jay Z to the Pope. But most of all, it's America's fastest growing city for millenials."

The full Under 30 Summit schedule is here.

Previously: Black Keys at Wells Fargo Center Follow In the Mix on Twitter