It might open with a wail of screeching guitar distortion, along with some raggedly grungy drumming, but Sub Pop�s latest darlings are a far cry from label-makers Nirvana. Think Christina Aguilera�s �Dirty� allied with some DIY electronica and a generous dollop of Brazilian kookiness, and you might be some way towards imagining this ridiculously addictive nugget of electro-rock. Catchy enough to pack dancefloors, off-the-wall enough to draw the indie kids, this is an underground hit in the making. Alala: Brazilian for utterly brilliant.