Eager to indulge in the staple of West Coast cuisine, the famished Londoners stood in the queue for hours before ordering such favorites as double-doubles with grilled onions and animal style french fries.
A passing motorist recorded a video of the interminable line, which formed on a sidewalk and -- naturally -- made its way past one of the city's signature red double-decker buses.
The pop-up restaurant was open for a mere four hours.
It is unclear whether the Irvine-based company plans to open a permanent location in the British capital.