This hour long episode of Popstars the rivals sparks the end of the series and what a way to finish it. Girls Aloud and One True Voice stand together to find out who got the number 1 hit and Girls Aloud came out on top selling almost double the amount of copies that the boys did. Cheryl, Nadine, Kimberly, Nicola and Sarah sing live their Number One ""Sound of the underground"" to the crowd as they cheer them on. The rest of the evneing sees the Cheeky girls peform a christmas duet of ""Santa baby"" and both One true voice and Girls aloud teaming up for the big finale.
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