Actors Justin Timberlake and Jessica Biel arrive at the Metropolitan Museum of Art Costume Institute Benefit celebrating the opening of "Schiaparelli and Prada: Impossible Conversations" exhibition in New York, May 7, 2012. (REUTERS/Lucas Jackson)

Jessica Biel is often ordered to change her outfit after failing to impress her fashion-conscious fiance Justin Timberlake.

The pop star and the actress are rumoured to be walking down the aisle later this year and Biel has been spotted in Paris, France hunting for her perfect wedding dress.

However, she will have to go out of her way to impress her partner on the big day as the Cry Me A River hitmaker often makes her change her clothes before they head out.

She says, "We both really love fashion. There are definitely moments where I'll come out in an outfit and he'll give me that look!

"He'll take me back into the closet and I'll change my shoes and I'm like, 'Yeah, this is way better.' Sometimes I won't change."