Sometimes I get a tune stuck in the noggin and I can't remember what it is...and I HATE THAT! This one's been stuck in there and I don't even particularly like it. It is a tune very very frequently used in movies and commercials. I think it is a soprano and an alto with heavy reverb, light orchestration. I'm somehow picturing snowflakes.
A cookie* for the person who can name it.
*not responsible for cookies lost/eaten by the mailperson/myself.
My sight reading is not very good and am at work at moment, but humming it to myself, and using Google to get the exact titles, it looks like 'Viens Mallika' from the opera Lakme by Leo Delibes. It's used by British Airways ads. I'll play it on keyboard when I get home to confirm.