The third night of the Foo Fighters’ residency at Late Show with David Letterman saw their most thorough involvement into the fabric of the show as they performed two songs and participated in a funny skit early on.

The most poignant of moments came following the broadcast when Letterman took to the mic and told a story about skiing with his son. “I recognized that I was older than most fathers and so did my son.” Letterman said that he needed to find something to do with his son that they could do together, so he suggested skiing. To commemorate the moment, their ski instructor filmed them coming down the mountain with the music set to Foo Fighters’ In Your Honor song “Miracle.” “This is the second song of theirs that will always have great, great meaning to me for the rest of my life,” the host closed with as the band launched into the song. Following the performance, Letterman, wiping away tears, thanked the band for a “great gift” and being “great friends.”

For the actual broadcast, the band once again continued their collaboration theme by welcoming out swamp rock titan Tony Joe White for a take on his own “Polk Salad Annie.” White, from a seat on stage, handled guitar and duties while the Foos accompanied him, making this much like the band’s performance on Tuesday night with Ann and Nancy Wilson of Heart.

And finally, as they did the previous night, the band participated in a sketch, posing as the Law Offices of Grohl, Hawkins, Mendel Shiflett, Smear and Associates. They fight foo…for you. Watch all three segments below.

“Miracle”

“Polk Salad Annie” with Tony Joe White

Law Offices of Foo Fighters Sketch