Mandy Moore 'Who's Kellan Lutz?'

Mandy Moore had to ask a rather embarrassing question to her Love, Wedding, Marriage costar Kellan Lutz before filming who are you?

The 27-year-old actress and singer admits she had no idea who her costar was and why he was such a big hit with the ladies before meeting him on set.

“I had no idea Kellan was in Twilight and had so many fans,” says Mandy.

“I think I’m the only person in the world who hasn’t seen those movies but after working with Kellan I’m sure I will. I’ve promised him I’ll watch them.”