Guardian Angels. The song quotes Martin Scorsese's 1976 movie Taxi Driver, with Clash associate Kosmo Vinyl recording several lines of dialogue imitating the voice of main character Travis Bickle. Bickle sports a mohawk in the latter part of Taxi Driver, this was a hairstyle adopted by Joe Strummer during the Combat Rock concert tour. The song "Ghetto Defendant" features beat poet Allen Ginsberg, who performed the song on stage with the band during the New York shows on their tour in support of the album. Ginsberg had researched punk music, and included phrases like "do the worm" and "slam dance" in his lyrics. At the end of the song he can be heard reciting the Heart Sutra, a popular Buddhist mantra. The song "Know Your Rights" starts off with: "This is a public service announcement...with guitar!" The musical style of the song was described as being one of the "more punk" songs on the album, reflecting the open and clear lyrics of the song. The lyrics represent the fraudulent rights for the lower and less respected class, with a nefarious Civil servant naming three rights, with each right having an exception to benefit the rich or being skewed against the lower class. Music for "Rock the Casbah" was written by the band's drummer Topper Headon, based on a piano part that he had been toying with. Finding himself in the studio without his three bandmates, Headon progressively taped the drum, piano and bass parts, recording the bulk of the song's musical instrumentation himself. The other Clash members were impressed with Headon's recording, stating that they felt the musical track was essentially complete. However, Strummer was not satisfied with the page of suggested lyrics that Headon gave him. Before hearing Headon's music, Strummer had already come up with the phrases "rock the casbah" and "you'll have to let that raga drop" as lyrical ideas that he was considering for future songs. After hearing Headon's music, Strummer went into the studio's toilets and wrote lyrics to match the song's melody. Release Following along the same note as Sandinista!, Combat Rocks catalogue number "FMLN2" is the abbreviation for the El Salvador political party Frente Farabundo Martí para la Liberación Nacional or FMLN. Lead single "Know Your Rights" was released on 23 April 1982, and reached number 43 on the U.K. singles chart. Combat Rock was released on 14 May 1982 and reached number