A man was arrested after ambushing Katy Perry on stage during her Lifetimes Tour in Sydney, Australia. Security removed the disruptive fan from the performance.

Katy Perry had an alarming moment when a fan jumped on stage and put his arms around her during her concert tour stop in Sydney on Monday, June 9.

A Katy Perry fan stormed the stage during a recent concert and was quickly escorted off by security. The pop star, 40, was in the middle of singing her hit tune "Hot N Cold" at the Qudos Bank Arena in Sydney on Monday when the incident took place.