You might wanna turn away, Katy Perry...
Multiple sources confirm that the blue-haired singer's ex-husband has started up a relationship with Isabella Brewster, as the sister of actress Jordana was spotted strolling through West Hollywood with Russell Brand over the weekend.
"It's been going on for a few weeks," an insider tells Us Weekly of Brand and Brewster, who has also dated Bradley Cooper and Milo Ventimiglia. "He really likes her."
The actor/comedian recently split from Perry after 14 months of marriage, with the singer admitting it was difficult for the pair to maintain their initial romance.
She's been linked to musician Robert Ackroyd of Florence + the Machine, but it appears as if Brand's fling with Brewster may be a bit more serious.
"She's cute," added the tabloid source. "She is all over him and Russell loves it."