Justin Timberlake's grandmother thinks the singer will make "an amazing dad" in the near future.

The 32-year-old heartthrob married Hollywood actress Jessica Biel at the end of last year, and his grandmother Sadie Bomar doesn't think it will be too long until the pair start a family.

Speaking to British magazine Grazia, she gushed: "Justin is going to make an amazing dad. They want a big family so I guess it won't be too long. They are the most lovely couple."

The '20/20 Experience' star opened his recent 'Mirrors' video with a written homage to his grandmother and late grandfather before using them as inspiration for the rest of the touching promo.

The video sees an older couple reflect on the times they had together previously.

As previously reported, Sadie explained: "Justin didn't tell me he was doing it, it was a surprise. He said, 'You have to see this video, just you sit down and watch it'. I was moved by it, it brings tears to my eyes. It's a lovely tribute to us.

"[Justin is] making a great husband. I am close to Justin and it was a lovely, beautiful thing for him to have done. That's how he is."