1, 2, 3 advert

[Mxfan]

There is an advert on itv wales with a song that has the lyrics "1, 2, 3" constantly repeated in it. The female singer sounds like Cerys Matthews from Catatonia. I presume that this advert is only shown in Wales. Does anyone know the name of this song and who sings it?

Thanks

[kempie]

Look here.