Which just leads us to "What are you going to do with it????"
I was just reading a description of "How to pitch" to professional markets that I thought was quite interesting. (Completely paraphrasing) She said to find an angle that fits with a current need of the publication, and work the story you want to tell into that angle.
That's pretty much what happens with Idol topics! I put out a request for a specific concept, and then you figure out how to make it work with something you want to write about! :)