In S1E14, a frustrated Lane tells Rory that she’s discovered she will not ever become a biologist, French translator, or Civil War buff. Rory says, “Well, I guess that just leaves bass player for the Foo Fighters.” Lane responds, “I also wouldn’t rule out keyboardist in the Siouxsie and the Banshees’ reunion tour.”
The Foo Fighters are discussed here.
Siouxsie and the Banshees was an English rock band in the 70’s, 80’s, and 90’s. Siouxsie Sioux was the lead singer and founded the band with guitarist Steven Severin. In 1988, Siouxsie and the Banshees added Martin McCarrick to their lineup as keyboardist. The band broke up in 1996 but did reunite in 2002 (after this GG episode) for a reunion tour. McCarrick was not part of the reunion tour.