The Steady Diet of Film blog has a brilliant analysis of the sources for Beyoncé’s hit video, “Put a Ring on It.” It is not just wise and witty, it is an entertaining glimpse into the combination of mash-ups, wikis, and creative imagination that come together on the internet.

First there was Fosse. Bob Fosse choreographed a dance number for his one-time wife and all-time favorite dancer Gwen Verdon, to the song “Mexican Breakfast.”

Then someone combined the dance with DJ Unk’s “Walk It Out.”

This inspired the dance and look of “Put a Ring on It.”

And that inspired many, many, many, many tributes, parodies, and variations including Verdon/Beyoncé, combining “Put a Ring on It” with the Verdon number and an SNL skit with Justin Timberlake.