Duran Duran's debut single is a good example of their early sound, a sort of new wave/disco hybrid that crossbred the icy cool of groups like Roxy Music with the propulsive rhythms of groups like Chic. The lyrics of "Planet Earth" name-check the new romantic movement that spawned the group ("like some new romantic looking for the TV sound") and present the kind of bleak futuristic scenario popular with these groups as the song's narrator looks at the night sky and tells any aliens who may be watching that "there's no sign of life." The music supports the spacy quality of the narrative with dreamy verse melodies that constantly ascend into the ether but also adds a pop element with a chorus that utilizes a singalong hook built around the scat-style nonsense phrase "bop-bop-ba." Duran Duran's recording of "Planet Earth" cements its combination of atmosphere and hooks by layering ethereal synthesizer lines over an insistent rhythm section groove that highlights the thumb-popping bass lines of John Taylor. This blend of new wave cool and disco grooves quickly caught on in the U.K. and helped "Planet Earth" to become a Top 20 hit. Duran Duran wouldn't catch on stateside until Rio, but "Planet Earth" made frequent appearances on MTV in its first few years, thanks to a stylish video featuring the band performing against a futuristic, glacier-styled backdrop. Duran Duran also recorded a "Night Version" remake of "Planet Earth" for a 12" single release that added a horn section to the song.