this is gonna be really vague, sorry! i've heard this song it's in portuguese and used on a british advert (again don't know which one but have been told so!). no idea who it's by or what it's called but apparently the chorus translates roughly as something to do with a bloke who dances like he's got ants in his pants?! any ideas??
I think by the sounds of it, it may be an Ikea advert a while ago, for which the song was in Portugese. This is the only one I can think of. The song is Wilson Simonal - Nem Vem Que Nao Tem