Britney Spears made eight outfit changes and sung hits from all nine of her albums during her highly-anticipated appearance at the Apple Music Festival in London on Tuesday.
The 34-year-old pop star opened her 90-minute set at the Roundhouse in Camden, London, with 'Work Bitch' before concluding with 'Till The World Ends'.
Britney paused twice to speak to the audience - once mocking the English accent, saying "Oh gosh!" - before inviting a member of the audience on stage with her.
Surrounded by a troupe of energetic dancers, the singer wore a green leotard with a top hat when she came on to the stage.
Other outfits included several sparkly leotards, and at one point a diamond embellished ringmaster's jacket.
To the delight of the screaming crowd, Britney sung her famous hits including 'Baby One More Time', 'Ooop! ...I Did It Again', and 'Toxic'.
Other hits included 'Stronger', '(You Drive Me) Crazy' and 'Boys'.
Fireworks were let off when she left the stage, before she shouted "Thank you London" as gold confetti poured from the ceiling.