1. By all accounts, Gaga was a dream backstage.
I just met Lady Gaga. What a sweetie. She walked on stage and said hi to all the stage team and cameramen. @TheXFactor #XFactor
Mark Sidaway
@marksidaway
I just met Lady Gaga. What a sweetie. She walked on stage and said hi to all the stage team and cameramen. @TheXFactor #XFactor
2. Gaga opened by playing the guitar.
3. She then greeted London joyfully.
4. She showcased the routine for "Venus".


5. She tired of her seashells, so she took them off.
6. There were lasers too.
7. She took off her wig to transition into "Do What U Want".
8. Which had its own routine too.
9. She took to the piano.
10. And she ended on top of it.


11. Some viewers were unsure.
Is this a French and Saunders sketch?
Mark Savage
@mrdiscopop
Is this a French and Saunders sketch?
12. But ultimately it was a show that only Gaga could have pulled off.
That was amazing. Utterly mental, awkward, weird. No-one else would have the guts to do that. R Kelly should have flown onto stage though
Dave Fawbert
@DaveFawbert
That was amazing. Utterly mental, awkward, weird. No-one else would have the guts to do that. R Kelly should have flown onto stage though
13. It was announced during the show that "ARTPOP" will be available through O2 Tracks six days before release.
View this video on YouTube
14. Gaga told O2: "I'm so happy that O2 Tracks is bringing "ARTPOP" to everyone in the UK a week early. I hope that all of the UK Monsters love it as much as I do!"
