This Is a Call toward the end of the summer in 1995. It was the band's first national television performance. Since this performance David Letterman has become an avid fan of the band and Foo Fighters have played on the show 11 times. "This Is a Call" was released as a downloadable content for the Rock Band series of video games on December 23, 2008. Dave Grohl said about the song: "The chorus says 'This is a call to all my past resignation'. It's just sort of like a little wave to all the people I ever played music with, people I've been friends
The Ghost of a Flea echos figures in Blake's earlier work, and his scaly body is similar to the monster in his 1805 pen and ink drawing "Pestilence: Death of the First Born". In 2006, the Tate hung "The Ghost of a Flea" and William Raddon's 1827 engraving after Fuseli's "The Nightmare" side by side in "The Nightmare in Modern Culture" room of their "Fuseli, Blake and the Romantic Imagination" exhibition. During his lifetime, Blake's prints were described as the work of a madman. This view was reinforced when word spread that Blake was inspired through visions, and, according to G. E. Bentley, "So plain