Foo Fighters frontman Dave Grohl seems like the busiest rock star in the business lately, with no signs of slowing down any time soon. He recently spoke to a group of television critics about the Foos' upcoming HBO show, 'Foo Fighters: Sonic Highways.' Apparently, while he may have rock and roll locked down, he could still use a little practice when it comes to doing TV press.

Grohl, as per usual, let the f-bombs drop with impunity while discussing the HBO project. And his cell phone rang during the discussion, which would probably be more embarrassing for someone less rock-starrish than he. But Grohl probably didn't care that much. He said "Sorry, I'm new to this" before knocking his microphone off while digging his phone out of his jeans.

Grohl said he and the Foos could have recorded their next album the normal way, but they wanted to do something different. "We could just go make another record in the studio, hit the road and sell a bunch of T-shirts," Grohl said. "It's all about reinventing the process."

The new show will feature the band traveling to legendary recording studios around the U.S., recording a song and interviewing some of rock's most iconic figures. While you wait for the show to debut, watch one of the band's best classic music videos, for the track 'Big Me.'