Rihanna fooled her millions of Twitter followers yesterday when she shared a photo of herself kissing a fan wearing a Justin Bieber mask.
The Roc Nation singer puckered up and planted a big smacker on the delighted fan whose identity was concealed by the mask.
RiRi also took a snap of the crazy fan pretending to use the toilet.
The 'Where Have You Been' singer is currently in the capital to film her Living TV fashion show with Girls Aloud's Nicola Roberts and blazed up the stage last weekend at the Hackney Weekend festival.
The Bajan beauty has been giving several of her UK fans a chance to get up, close and personal with her.
Last week she planted a kiss on a lucky fan as she left a recording studio and enlisted the help of a thrilled audience member at the Hackney Festival to adjust her mic pack on her bra.