• BREAKING NEWS ABC shows live and on-demand -- Download the WATCH ABC app!

OTRC: Amanda Seyfried gushes over Justin Timberlake's voice

Justin Timberlake in a still from his 2007 movie, 'Black Snake Moan.'/Amanda Seyfried in a still from her 2009 film, 'Letters to Juliet.' (Photos courtesy of Paramount Classics/Summit Entertainment)

Amanda Seyfried says the best part of making her upcoming Sci-Fi movie "Now" was listening to her co-star Justin Timberlake sing during their breaks from filming.

"The best part was when Justin kept bursting into song on set," Amanda told entertainment site Bang Showbiz. "He'd just be mocking something but it'd sound beautiful. God, I love it when he opens his mouth that way."

"Now" is slated for release on October 28, 2011 and takes place in the future, where the human aging gene has been turned off and to avoid overpopulation, people use time as currency. In this world, the rich can live forever and when a young man inherits a fortune of time but is too late to save his mother from dying, he ends up fighting against the corrupt police force known as 'time keepers.'

Seyfried recently gave Timberlake a surprise when he interviewed her over the phone for the March issue of Interview magazine by admitting that she was naked.

Even though she enjoys Timberlake's singing, Seyfried isn't interested in reprising her musical role in "Mamma Mia" for a sequel of the popular movie, set to ABBA music.

"It is just not happening. And if it does, I honestly don't thing they could make something good. I don't see the point in trying to stop it because 'Mamma Mia!' was so sweet and positive and people love it - to try and do it again would be a big mistake."

The actress has reportedly split for Ryan Phillippe after four months of dating, though neither actor has confirmed the news.

Seyfried currently stars in the upcoming "Red Riding Hood," a retelling of the classic folk tale where Seyfried's character is torn between two men, one of which maybe a wolf by night, terrorizing a local village. "Red Riding Hood" is set for release on March 11, 2011.

(Copyright ©2018 OnTheRedCarpet.com. All Rights Reserved.)