Pop star Justin Timberlake's grandmother wants him to marry girlfriend Jessica Biel - in an intimate ceremony in his mother's backyard.

Sadie Bomar insists she would love to see her grandson settle down with the actress, and is convinced their relationship will lead to marriage.

She tells British publication The Sun, "Jessica's really sweet. She's his age and isn't possessive. I think their personalities are a lot alike."

And Bomar would love a small family gathering for his nuptials - and thinks Timberlake's mother's garden would be the ideal setting.

She adds, "I just want them to be happy. Justin should get married in Lynn's back yard in Tennessee."

"She has a big back yard with beautiful flowers. I think it would be perfect."