The blonde girl with pigtails who asks if Lorelai got pregnant at 16 is a young Riki Lindhome of Garfunkel and Oates (a comedy band she later forms with Kate Micucci ) fame.
This is the first episode Zack and Brian appear in.
When Lorelai finds a Hawaiian shirt in Luke's closet, she accuses him of attending Jimmy Buffett concerts and of being a "Buffetthead". The term is actually Parrothead.
Lane says that the band "sounds like a bunch of wankers". This is a swear word in the UK. It is the equivalent of "jerk off".
Dave tells Lane: "There's no way you're going to become our Pete Best." Pete Best was the original drummer for the Beatles, but he was fired early on (in 1962, just before the band hit it big) and was replaced with Ringo Starr. .