GaGa made an entrance in typically eccentric style by wearing a white wedding dress complete with train, white satin gloves and a tiara on top of a netting turban.
The 26-year-old 'Bad Romance' singer was later greeted by fans outside her hotel, including one dressed like the late John Lennon, who she happily sat down and posed with.
Rihanna, who performed with Coldplay and Jay-Z at yesterday's ceremony, wore an orange-red Kenzo Paris T-shirt and a pair of matching high-waisted trousers to the bash.
The 24-year-old singer was joined by Jay-Z, Marina Diamandis, Dita Von Teese and boyfriend Theo Hutchcraft from Hurts.
See more pictures from the Paralympics 2012 after-party below:
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