Mariah Carey brought a touch of glamour to the Sundance Festival at the premiere of her new film.

The singer and actress appears as a social worker in Push. Based on the novel by Sapphire, about an illiterate, overweight teenage girl living in Harlem.

Mariah arrived on the red carpet to pose for photos with hubby Nick Cannon - who is also promoting a film at the festival - before chatting briefly to reporters about her role in the flick.

She told them "we don't do glamour" on the sets of Push director Lee Daniels.

"The thing that I have to thank him for is allowing me to remove so many, just, layers of persona and all that kind of stuff, and to dig deep within myself as an actress and really be able to explore this character, 'cause the material is so great that I'm just privileged to be part of it."

When asked how it felt to both have films at Sundance together, Nick - who appears in The Killing Room with Chloe Sevigny - said: "It's an amazing thing, I mean, to be able to share this with your wife, to see her do such a phenomenal job with such a great piece of art - you know what I mean."

When a reporter asked about "a little Nick and a little Maria on the way", he joked: "In 2099!" before heading into the film.