Record label run by
Led Zeppelin and distributed by
Atlantic Records. Named after a song of
Jimmy Page's, but when a fictional record label of the same name was to appear in the
movie Phantom of the Paradise, Led Zeppelin were able to say they had earlier rights to the name through having bought the name of the older "Swan Records," which was no longer in business. (The moviemakers changed the name used in the film to "Death Records.")
Swan Song released all Led Zeppelin records starting with 1975's Physical Graffiti, as well as records by Bad Company, Dave Edmunds, the Pretty Things, Maggie Bell, Detective, Midnight Flyer, Sad Cafe, and after Zeppelin's breakup, Jimmy Page's solo work on the Death Wish II soundtrack and Robert Plant's solo Pictures at Eleven.
Sources: Hammer of the Gods
http://www.bsnpubs.com/atlantic/swansong.html
http://www.musicimports.com/discography/led-zeppelin.htm
http://www.cduniverse.com/productinfo.asp?style=movie&PID=1911738