[Rory, Lane and Lorelai are walking through Stars Hollow. They cross a street]
LANE: Are you serious? …We can really rehearse in your garage?
LORELAI: In exchange for the promise that you never pose naked on the cover of Rolling Stone no matter how much trouble your career is in.
Rolling Stone magazine has quite a tradition of musicians and actors posing nude or semi-clad on their cover. A few examples are John Lennon and Yoko Ono in 1968, Madonna in 1991, The Red Hot Chili Peppers in 1992, and Blind Melon in 1993. Most recently from the perspective of this episode, Christina Aguilera had appeared nude on the cover in November 2002.
In this episode, Lane’s problems finding a rehearsal space for the band are solved when Lorelai generously allows them to rehearse in her garage. Given how noisy bands can be while rehearsing, this is an extremely kind offer on Lorelai’s part.