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10 June 2012, 17:06 | Updated: 11 June 2012, 15:51
Katy Perry performed 'California Gurls' during her set at Capital's Summertime Ball in London. Watch the footage of her live performance here.
Katy Perry performed 'California Gurls' during her set at Capital's Summertime Ball in London.
The song was released in 2010 as the lead single from Katy's second album 'Teenage Dream'.
The track's lyrics paint a colourful picture of sunny California – Katy's home stage – and the original version of the song feature a cameo appearance from Snoop Dogg.
'California Gurls' was a summer smash, topping the Vodafone Big Top 40 upon its release.
You can watch Katy Perry performing 'California Gurls' at the Summertime Ball in London below and scroll down for more of Katy Perry's performance footage from the Summertime Ball 2012.