Mariah Carey previews new single 'Almost Home' - listen

Mariah Carey has previewed her new single 'Almost Home'.

The singer released a 30-second preview of the track, which is to be included on the soundtrack of Disney's Oz the Great and Powerful.

Carey unveiled the artwork for the single earlier this week, and the song will be released on full on February 19.

The American Idol judge also tweeted pictures of her romantic Valentine's Day celebrations with husband Nick Cannon. They included her enjoying a bubble bath and on a horse and carriage ride with Cannon in Central Park.

Oz the Great and Powerful has been written as the prequel to the story of The Wizard of Oz and stars James Franco, Michelle Williams, Rachel Weisz and Mila Kunis.

It is released in US and UK cinemas on March 8.

Watch a trailer for the film below:

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