Absolutely Free (song) which is explained by Zappa in the spoken introduction to the song ("The first word in this song is discorporate. It means to leave your body"). "Discorporate" plays heavily in Robert Heinlein's science fiction novel "Stranger in a Strange Land", which was very popular among hippies and provided the muse for several songs by Jefferson Airplane. The lyrics also reference the song "Mellow Yellow" by singer-songwriter Donovan, who is often associated with the hippie movement ("The dreams as they live them are all mellow yellow"). On some pressings of the album, especially on earlier releases, two lines of the lyrics
Yellow (Coldplay song) that "they would never make it". The song was later performed on 7 July at the G20 summit in Hamburg, Germany with guest vocals from Shakira. "Yellow" has been covered by numerous singers worldwide, some in different languages and styles. A Chinese language version of "Yellow" was recorded by Chinese rock singer Zheng Jun in 2001, six months after the original release of the single. Singaporean singer Tanya Chua covered the song. The cover band and comedy act Richard Cheese and Lounge Against the Machine covered this as a Lounge style version on his 2004 album "I'd Like a Virgin".