From the Jonas Brothers?
A bit grown up, but other than that, moms and daughters got a lively and very wholesome night of entertainment from these Jersey boys, not to mention Sparks, South Korean girl group Wonder Girls (for one song) and the harder-rocking quartet Honor Society.
One song? That's the only mention I found of them in the Pittsburgh media, and I found only one mention in the paper of their trip to Philly:
The Jonases even have their own farm team - the Jonas Group, which squeezes acts such as openers Honor Society into the Jonas mold, although the postcoital imagery of "See U in the Dark" doesn't exactly fit their mentors' squeaky-clean image. They also put the spotlight, briefly, on the South Asian girl group Wonder Girls, whose one-song performance failed to make much of an impression.
South Asian, South Korean, same-same. Well, they seem to really be hitting "Nobody" hard. From manager JYP's twitter page
Come learn the Nobody dance by the girls! Verizon Bus-Pittsburgh,Mellon Arena @ 4:30 C u there(No tickets required!might cancel if it rains)
. . .
11:27 AM Jul 25th from web Learn the Nobody dance by the Wonder Girls! Verizon Bus -Wachovia Center(Philadelphia)@4:30 (No tickets required!might cancel if it rains)
. . .
10:26 AM Jul 24th from web Come learn the Nobody dance by the Wonder Girls! Verizon Bus -Wachovia Center(Philadelphia) @ 4:30 C u all there!(no tickets required!)
One of those sessions was uploaded to Youtube.