Comedian and actor Russell Brand was mobbed on Tuesday as he went for a stroll around London's Winter Wonderland in Hyde Park.
The funnyman was being trailed by hordes of screaming fans within minutes of setting foot in the park, with witnesses saying he had trouble getting around the festive funfair.
A source told The Sun: "Almost 100 people were following him so he had to get out of there. One bunch were shouting, 'Where's your missus?' and singing Firework.
"It can't have been nice for him."
It must have been horrible! Having to hear Katy blast out Firework every night before bed and then listening to it from a bunch of blokes in the park? What a nightmare!
Earlier this month the couple were forced to deny divorce rumours. Katie tweeted: "First I'm pregnant & then I'm divorced. What am I All My Children?! Erica Kane... pshhh. If I had a dollar for every time."
Maybe the random singing blokes in the park had inside info and the relationship really is on the rocks. They were just soothing Russell's pain and carrying on the joy of Katy's music.