Emeli Sande has written a song about her ''heartbreak''.

The 'Next To Me' singer penned the emotional track about her divorce from her childhood sweetheart Adam Gouraguine after just one year of marriage, ending their 10-year relationship.

According to Naughty Boy - who produced the song 'Saddest Vanilla' with the Brit Award-winner - Emeli is hoping the track will ''set the ball rolling'' for her musical comeback next year.

Naughty Boy, 29, compared the song, which features 25-year-old singer Jess Glynne, to power ballads sung by music legends Mariah Carey and the late Whitney Houston.

He said: ''It is a heartbreak song and they sound great on it. It's a real Mariah and Whitney moment.''

Emeli, 27, recently admitted she was still coming to terms with with losing her ''best friend'' Adam.

The Brit-born beauty said: ''Everyone thought I'd gone mad. 'What do you mean a divorce? We were all at your wedding a few months ago!' But there was just something inside me that said, 'This isn't the life. You're pretending to be someone else.'

''And that's so hard to explain to someone. I can't even explain it now.

''Adam and I had been together since I was 17. He was my only boyfriend. That's the only person I've been with for the past 10 years.

''So [losing] our relationship more than the marriage was the big part for me to deal with.

''Having a friend who'd been my best friend for so long ... losing that support and structure in my life was the biggest thing.''