The pop star officially debuted the track during her set at Spain's O Son do Camiño.
The "Firework" singer was headlining the O Son do Camiño festival in Santiago de Compostela, Spain when she made the dig, according to social media videos.
The American pop star showcased her back catalogue on stage at Blenheim Palace on Wednesday.
Katy Perry brought fireworks to "Winston Churchill's backyard" with an explosive show at Oxfordshire's Blenheim Palace.
A new video has been released featuring Kelsie Watts performing Katy Perry's hit song, “Firework” as Satine in Moulin Rouge! The Musical on Broadway. Check out the performance below. Watts joined the ...
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