Russell Brand and Katy Perry want their own little Justin Bieber.

The couple, who got engaged in December, are big fans of the teen singing sensation, and have joked they even have a plan to grow their own version of him.

“Me and my fiancee love him. We want our own Justin Bieber. We can’t have the actual one because he’s busy with his work. I understand he procreates by laying eggs in the sea and then we can fertilise these eggs and have our own Justin Biebers. We could grow Justin Bieber in a jar like sea monkeys,” the comedian said.

The Get Him to the Greek star is even jealous of 16-year-old Justin’s other celebrity fans. When told that Kim Kardashian had “Bieber fever,” Russell joked, “What? My little Justin? Keep away, Kim. I’ll neutralize you with my doctor mitts!”