A straightforward dance music track with disco elements, "Star" was written by Erasure members Vince Clarke and Andy Bell, its lyrical content clearly referencing nuclear war; Erasure's own form of protest song. When released as a single, the track was remixed slightly for radio, bringing acoustic guitar elements and various background vocal parts forward in the mix.

The last single released from Wild!, "Star" became Erasure's twelfth consecutive Top 20 hit on the UK singles chart, peaking at number eleven, and in Germany it peaked at number twenty-three. In the United States, "Star" did not enter the Billboard Hot 100, although it became a popular club hit, climbing to number four on the U.S. Hot Dance Music/Club Play chart.

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