This was the closest Led Zeppelin came to glam rock. It sounded a little like T-Rex and David Bowie, but Zeppelin was not about to put on make up or wear feminine clothes.
The song is about Led Zeppelin's groupies. Robert Plant's vocals are hard to hear because they are buried in the mix.
Led Zeppelin performed this live on their 1975 and 1977 tour dates, and for fun, dressed up in drag one night to perform it.
At the end of this number, a suitably sickly cough arises from John Bonham, whose health was not always in best shape after "A night on the tiles."
In an interview with Rolling Stone (March 13, 1975) the interviewer, Cameron Crowe, commented that Robert Plant seemed to be depressed about the thought of growing up. Plant responded: "Well, I am. I haven't lost my innocence particularly. I'm always ready to pretend I haven't. Yeah, it is a shame in a way. And it's a shame to see these young chicks bungle their lives away in a flurry and rush to compete with what was in the old days the goodtime relationships we had with the GTOs and people like that. When it came to looning, they could give us as much of a looning as we could give them. It's a shame, really. If you listen to 'Sick Again,' a track from Physical Graffiti, the words show I feel a bit sorry for them. 'Clutching pages from your teenage dream in the lobby of the Hotel Paradise/Through the circus of the L.A. queen how fast you learn the downhill slide.' One minute she's 12 and the next minute she's 13 and over the top. Such a shame. They haven't got the style that they had in the old days... way back in '68."