Article continues below advertisementRussell Brand mocked ex-wife Katy Perry's new romance.Article continues below advertisementDuring an appearance at Turning Point USA's America Fest 2025 in Phoenix on Thursday, December 18, the comedian launched into an unexpected rant about the pop star's current relationship with former Canadian Prime Minister Justin Trudeau."Look, Katy Perry, I was married to her. I love her still, and I'm glad that her mom's in the room to hear me say this, but look.