The 23-year-old singer came on stage to excerpts from the film Mean Girls, including the famous quotes, 'Is butter a carb?' and, 'You can't sit with us', reported BBC online.
Ora wore a pair of baggy ripped jeans with a silver innerwear and denim jacket, with her hair in a high ponytail decorated with jewels.
'RIP' opened the set, with Ora joining on stage by a troupe of energetic backing dancers.
The singer also treated the crowd to a new song from her forthcoming album, stepping down from the stage to join the audience before hopping back up and lying across the floor to sing it.