The mix is between Fergie's "London Bridge" with Avril Lavinge's "Girlfriend" to form "Girlfriend Bridge"!
As I said, I am not a big fan of either song in their corresponding original forms, but I do (for some unknown reason) like this mash-up.
Further to simply posting this song, I would just like to provide a visual aid to any non-UK citizens to explain why "Going down like London Bridge" just doesn't make any sense.
Firstly, I present Exhibit 'A':
As you can see from this photo, London Bridge is of a flat, solid nature and does not at any point raise up or down!
As you can see, this is a lovely picture of Tower Bridge. This is NOT London Bridge and is perhaps a better reference for "going down". Tower Bridge also features heavily in the Fergie music video, fuelling this misunderstanding.
Anyway, with the rant over, please enjoy this week's mash up:
Mash Up Monday - Fergie vs Avril Lavigne - "Girlfriend Bridge"