Carly Rae Jepsen's late grandmother will have a special part in the singer's preparations for the Grammy Awards on Sunday (10Feb13) - her mother is wearing a vintage dress she designed.

The Call Me Maybe hitmaker is flying members of her family from Canada to Los Angeles for the big awards show, where she hopes to pick up two gongs, and now she has her outfit planned she has turned her attention to her mom and sister.

Carly Rae Jepsen says, "My mom is wearing a vintage dress that my grandmother made... and my grandmother passed away so we feel like it's gonna be a way for her to be there too. She's written up a whole story about it on Facebook; it's quite cute.

"And I haven't seen what my sister's picked yet. She's got a surprise. I have a feeling, knowing her, we'll wear the exact same thing by accident."

Carly Rae Jepsen will compete in the Grammy Song of the Year and Best Pop Solo Performance categories for the smash hit Call Me Maybe.