Katy Perry Accidentally Flashes Bare Bottom During Livestream

She's been live streaming her entire weekend across the web to promote her new album Witness.

And Katy Perry's Witness World Wide promo stayed true to its word when viewers accidentally 'witnessed' a glimpse of the Roar hit-makers pert posterior.

The Part Of Me singer, who moved into an apartment fitted with 42 cameras for the weekend, was enjoying a relaxing massage when she accidentally flashed her bare bottom.

Resting on the massage table covered only by a towel, a naked Katy stirred on her side slightly, revealing a hint of cheek to unsuspecting viewers.

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