Those who were lucky enough to get their first look at the iPhone 5 during Apple’s press conference in San Francisco on Wednesday enjoyed a double treat -- a special performance from the Foo Fighters as well. Their acoustic set included renditions of "Times Like These," "My Hero" and "Walk."

During the set, frontman Dave Grohl took a minute to pay tribute to his musical idols. "One of the incredible things about being here is that you're meeting people who are shaping our future," Grohl told the crowd. "And just like Little Richard , Tom Petty , Jimmy Page , these are just people who took it upon themselves to change our future, but you meet them and they're people! And this one's dedicated to all those people."

In other Foo Fighters news, the band will performing with The Black Keys and Band of Horses at the Global Festival, a concert event to raise money and awareness about global poverty. The performance will take place in Central Park in New York City on September 29. Fifty-four thousand tickets will be given away by lottery, but you’ll have to perform a number of charitable deeds or donate money to enter the drawing for your ticket. Visit GlobalFestival.com for more information.

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