This one's weird: Opportunities (Let's Make Lots of Money) by Pet Shop Boys. The song is being used in an insurance advert on TV, featuring a driver and his car's metallic female hood ornament, singing that song to one another as a duet. The ad should come with a warning, "if this is happening to you, pull over immediately and call medical help, you're hallucinating". I couldn't make this up if I tried.
The ad is playing heavily, so the song usually ends up in my head several times a day. An ice pick might dislodge it, but I don't have one of those; probably for the best.