The I Kissed A Girl singer and the British comedian are due to tie the knot in India later this year, but Katy Perry seems keen on starting a family already, asking Russell on Twitter if they can have the 16-year-old Baby star to live with them.

Katy posted a picture of Justin and tweeted: “Hey Rusty Rockets I know we’re getting hitched and all, but I was wondering if you’d be open to the idea of adopting first? I have an idea… what about this cute lil one? I’m sure he could use a great home.”

But Russell, 34, is not such a fan of the young singer. He has just given an interview to Rolling Stone magazine in which he revealed he thought Justin’s music was awful, and had an extreme solution to sort out the pop-saturated music industry.

The former heroin addict joked to the magazine: “The top of the hit parade would look very different if teenyboppers were exposed to heroin. It would weed a lot of them out. I don’t think Justin Bieber could handle  Syd Barrett’s habit.

“A lot of people in their journey to rehab overdose, and then, perhaps, we would be spared their awful music. It’s Darwinian. It’s the law of natural selection.”

Katy, 25, may be trying to smooth over her fiance’s harsh words as she tweeted: “The Drugs Don’t Work – The Verve… in my top 10 best songs ever. Oh, my. This song is so beauty.”