Lady GaGa's Party Night: Before and After

Electropop singer Lady GaGa, 22, had seemingly conquered London last night, until London turned the tables.

GaGa took the stage to perform songs off her hit debut album The Fame at the city's Maya Club.

Then it was off to Bungalow 8 to meet up with friends, including Lindsay Lohan's possible future brother-in-law Mark Ronson.