Like a house guest who doesn't want to go back home to Jersey, Bruce Springsteen is extending his stay at Spectrum in South Philadelphia in October. With tickets for his October 13 and 14 shows, which went on sale this morning, all but gone, the Boss has added two more dates, on October 19 and 20. Tickets go on sale at 10 a.m. this Thursday on ComcastTix.com and LiveNation.com. Pearl Jam will close down the venue for good on October 28 and 30. Here's a clip of Springsteen doing "Thunder Road" at the Spectrum in April, with an intro by the late Harry Kalas.