Girls Aloud is the leggy quintet that beat out rival boy bandOne True Voicefor the grand prize during the November 2002 finale of Popstars: The Rivals. A scion of existing U.K. reality shows like Popstars and Pop Idol (which itself spawned American Idol), Rivals followed a similar formula, with one essential twist. After spending weeks building its bands with the normal round of tryouts, kick outs, voting, and drama, drama, drama, the program pitted its final products against one another in an ultimate pop-reality showdown. As usual, it didn't really matter which group won -- the finalists were to embark on the normal cash-in package tour as soon as possible. But something funny happened on the way to ringtone fame. Girls Aloud's debut single "Sound of the Underground" debuted at number one,One True Voiceimploded, the collaborative tour was canceled, and the Girls suddenly emerged as something more than wide-eyed reality TV winners. The quintet embraced their newfound celebrity and set the lofty goal of being better thanthe Spice Girls. To that end, there's Sound of the Underground, a cleverly arranged tray of sweetmeats manufactured to firmly establish the Girls Aloud sound. Unlike