Dan Gross: He likes the girl, not the show

ANDORRA/CHESTNUT HILL- raised Gregory Michael is dating Stephanie Pratt of MTV's "The Hills," though he hates reality TV.

"I'm not a big reality-show person," Michael says of Pratt, who was in Atlantic City Saturday hosting a party at Dusk inside Caesars. "I don't watch it and I don't endorse it. Who she is has nothing to do with what she does."

The pair, who are dating but "aren't at the girlfriend/boyfriend stage yet," met around Thanksgiving while doing charity work in Los Angeles. "I had no idea who she was when I first met her," says Michael, who has yet to meet Pratt's brother Spencer or his wife, Heidi Montag. The actor, born Gregory Michael Hosmer, says his two years at Penn State were "way more wild" than the college life on "Greek." He attended Norwood- Fontbonne Academy for elementary school and La Salle College High, graduating in 1999.

"One of my biggest dreams is to work in Philadelphia, either shoot a movie or series in Philly," Michael says. He recently worked with Fred Savage, who directed an episode of "Greek" and told Savage how much he'd love to work on "It's Always Sunny in Philadelphia," which Savage directs.

Michael is in town often and says he flies in sometimes just for cheesesteaks from Dallesandro's (Henry & Wendover). He says performing at the Walnut Street Theatre, in shows such as the "Music Man" and "Blood Brothers," "helped more than anything else" hone his skills.

Joan Jett is everywhere, it seems

Joan Jett is being celebrated not only in the new "The Runaways" movie in which the Lankenau Hospital-born rocker is played by Kristen Stewart of "Twilight" fame, but also in a new book, "Joan Jett," by designer Todd Oldham. Oldham interviewed Jett and used quotes from past interviews to write in her voice. He also designed the photo-heavy book with candid images of her as a child, with the Runaways and as part of Joan Jett & the Blackhearts, who just released a greatest-hits CD. Jett's Philly memories are limited, she tells Oldham, " 'Cause we moved quickly to Pittsburgh."

Piano Man's saxman serenades

Mark Rivera, Billy Joel's lead sax player for more than 25 years, will be in town to serenade friends Irene and Fred Shabel on April 23, when they are honored at the annual benefit for children at the Arthur Ashe Tennis Center (4842 Ridge).

Fred, who played basketball at Duke, coached UConn and was Penn's athletic director before becoming a Comcast bigwig. Irene, a former human-resources exec, befriended the saxman at the 2006 NCAA Basketball Tournament East Regionals at the Wachovia Center.

For info and tickets, visit ashetennis.org or call 215-487-3477.

'Runway' designer at Drexel

"Project Runway" contestant Althea Harper is coming to Drexel University to speak about her experiences on the Lifetime series and as a fashion student.

The lecture is free and open to the public, presented by the Drexel Art Organization and Antoinette Westphal College of Media Arts and Design. The program, at 6:30 p.m. April 12, is at Bossone Research Center (3128 Market).

'Feet' on Larry King

Back on My Feet, the local homeless- running club and its founder, Anne Mahlum, will be seen on tonight's "Larry King Live" on CNN (9 p.m.). Mahlum was named a CNN Hero in 2008 for starting the program. Tonight's coverage is a follow-up piece on the organization, which promotes self-sufficiency among the city's homeless by encouraging them to run.

Raheem Brock parties at G

Colts defensive end Raheem Brock, who also played for Dobbins High and Temple, dropped by the Hennessy Black launch party at G Lounge (111 S. 17th), where DJ D-Nice and DJ Omega, formerly of NBC10's "10!" show, kept the crowd moving.

Locals open new Hard Rock spot

Veteran Atlantic City club owner Buddy Morton and South Philly-born chef Steve Martorano tonight open Martorano's at the Hard Rock Hotel and Casino in Seminole, Fla. Martorano has restaurants in Fort Lauderdale and at the Rio in Las Vegas, and Morton, who runs a club Passion at the Hard Rock, brought him in to open the Italian spot. The Polish American String Band, Jerry Blavat and actor/singer Frank Stallone will be on hand for tonight's opening bash.

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