The Silhouettes were an American doo wop/R&B group, whose single "Get a Job" was a number 1 hit on the Billboard R&B singles chart and pop singles chart in 1958. The doo-wop revival group Sha Na Na derived their name from the song's lyrics, later going on to perform "Get a Job" in the 1978 movie Grease, and the nickname "Xanana" of former East Timorese President and Prime Minister Xanana Gusmão is in return derived from the name of the band "Sha Na Na", though with the spelling changed to "Xanana" to conform with the spelling rules of both Portuguese and Tetum, both of East Timor's official languages. "Get a Job" is included in the soundtracks of the films American Graffiti, Trading Places, and Stand by Me. The Silhouettes performed in the 1986 movie Joey.