Watch Foo Fighters Debut "Lah Di Da" In Reykjavik

Foo Fighters came back with "Run" a couple of weeks ago, and they debuted another new song during their performance at the Secret Solstice Festival in Reykjavík yesterday. "We only have 22 minutes left, but I want to play you all the new fucking songs," Grohl said toward the end of their set. After asking…