Katy Perry hits bum note on night out

London, June 11 (ANI): Dressed in a pretty transparent blouse and black and white skirt, Katy Perry, accidentally flashed her bum as she left a bash in London.

The singer reportedly partied all through the night at 'Cirque Du Soir' on Sunday night, the Sun reported.

The songstress suffered the wardrobe malfunction in the early hours of the morning as she squeezed past a bollard while leaving the nightclub.

The 27-year-old singer's new boyfriend, 'Florence + The Machine' guitarist Robert Ackroyd, also put in an appearance at the night.

The pair have been spotted spending a lot of time together recently, and even headed out on a date at a bowling alley earlier this week. (ANI)