It's a popular song by Beyoncé called "All the Single Ladies".
Here, have some nightmare fuel.
I will thank you, and politely decline your offered Youtube video based on your description. Though you could have Rickrolled me, and perhaps that might be better? I miss out a lot of references because I avoid youtube like the plague. This is a good thing, for the most part. And I didn't ignore Cat Mario... and now I must add "STEEEEEEVE!" to my exicon of in jokes due to my brother's wild youtubing frenzies. =D