Forbes Under 30 Music Festival

The Forbes Under 30 Summit arrives in Philadelphia next week, with the money magazine convening a confab of hotshot entrepreneurs and cultural influencers on Monday and Tuesday at the Convention Center, from PayPal founder Peter Thiel to Spanx billionaire Sara Blakely to Nobel Peace Prize (and Liberty Medal)-winning Pakistani education activist Malala Yousafzai.

Before the attendees get down to the business, they'll have a party with the Under 30 Music Festival at the Piazza at Schmidts on Sunday. The free show headliners are weed-centric "Black and Yellow" Pittsburgh rapper Wiz Khalifa and Dutch beatmaker Afrojack - the DJ and producer better known as Nick van de Wall who will also lead a panel discussion on Monday at the Convention Center. Also on the bill: New York songwriter LP, who has penned hits for Rihanna; and Philadelphia rap duo OCD: Moosh & Twist.

The show is being put on in partnership with poverty-fighting organization Global Citizen, whose annual Central Park concert featured Jay Z, Beyoncé, and the Roots last month. Tickets are free, but to get them you have to go to the Global Citizen website and "take actions." Important note: The concert starts at 4 p.m. and ends at 9.

- Dan DeLuca

Forbes Under 30 Music Festival, with Wiz Khalifa, Afrojack, LP, and OCD: Moosh & Twist, starts at 4 p.m. Sunday at the Piazza at Schmidts, 1050 N. Hancock St. Free. Go to http://www.globalcitizen.org/nights#actions for tickets.

Eric Church and Dwight Yoakam

This country show highlights two of the best of their respective generations. Headliner Eric Church, 37, may not be quite the outsider he portrays himself to be on his latest album. But the North Carolina native does bring an edge, both musically and lyrically, that you don't hear from most of his male contemporaries. Dwight Yoakam, 57, helped jump-start the neotraditionalist movement in the late '80s, but, like Church, he's no purist. The Kentucky-born Hollywood hillbilly synthesizes country, rock, and pop in ways that enrich rather than water down the music. His latest album, 2012's 3 Pears, shows he's still at the top of his game. And if that's not enough, the concert will be opened by Brandy Clark, one of the bright young female singer-songwriters who are doing the most right now to reinvigorate country.

- Nick Cristiano

Eric Church, Dwight Yoakam, and Brandy Clark play at 7 p.m. Saturday at Wells Fargo Center, 3601 S. Broad St. Tickets: $22 to $62. Information: 800-298-4200, Comcasttix.com.

Sam Amidon with Bill Frisell and Shahzad Ismaily

Sam Amidon is a folk artist, but he's no traditionalist. He specializes in reimagining old songs - murder ballads, Appalachian fiddle tunes, blues laments - although he likes to juxtapose contemporary covers from unexpected sources such as R. Kelly or Mariah Carey. His plainspoken, slightly creaky voice and expert banjo, fiddle, and acoustic guitar retain the music's historical roots, but the arrangements add subtle new colors. On Lily-O, his sixth album, he works with an adventurous trio that includes jazz guitarist Bill Frisell and bassist Shahzad Ismaily, who will accompany him Friday night at FringeArts along with drummer Kenny Wollesen. Frisell, like Amidon, treats music from the American tradition with respect but not reverence, and his pure, liquid electric guitar lines weave ghostly, gossamer webs throughout Lily-O. It's a fascinating and rewarding collaboration.

- Steve Klinge

Sam Amidon with Bill Frisell and Shahzad Ismaily play at 8 p.m. Friday at FringeArts, 140 N. Columbus Blvd. Tickets: $20. Information: 215-413-1318, www.fringearts.com.