The two attended a Bjork concert at the Hollywood Palladium here. Thy were said to have met up secretly and made their way into the gig together before leaving separately to avoid photographers waiting outside the venue, reports dailymail.co.uk.
Perry, 28, opted for a gothic inspired ensemble, teaming a leather miniskirt with a black and silver Tee shirt.
"The Part Of Me" singer teamed her outfit with a long black satin coat, black tights and heels. She also wore a black and silver neckpiece.