"This is what Ghost is about"
Actor and 'Scrubs' fave, Coldplay devotee
It marks the first time Grohl and Greg Kurstin have recorded the series in front of a live audience
Playing with Brian Johnson of AC/DC, though, was “so much fucking fun”
The night saw Foo Fighters perform for the first time since their drummer's tragic passing in March
Foo Fighters' Dave Grohl called them the "one band that I always associated Taylor Hawkins with"
The duo's first performance together since the death of Neil Peart took place at the 'South Park' 25th anniversary concert, joined by Primus and 'South Park' co-creator Matt Stone
But they've said it was all in the name of remaining loyal to their late friend and bandmate
The Foo Fighters drummer passed away last month in Colombia
“His musical spirit and infectious laughter will live on with all of us forever"