Ukrainian reporter Vitalii Sediuk may not be a household name, but the so-called "prankster" has been causing quite a commotion in Hollywood lately.
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It's not the first time Vitalii has pulled off this kind of stunt. Indeed, the 25-year-old media personality boasts a long history of public disruption, especially when it comes to harassing celebrities.
The abrasive reporter first made his mark in 2011, when he baited Madonna at the Venice Film Festival with a bouquet of hydrangeas. (Madonna made headlines that same year for going on record to say how much she loathed the flower.)
Since then, the menace to celebrity has made persistent attempts to swarm A-listers like Adele and Brad Pitt – the latter of which led to his brief incarceration before he was sentenced to court-appointed community service.
Hello! looks back at some of Vitalii's most infamous celebrity run-ins to date.