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4 January 2013, 13:15
The 'Stronger' star says she's lost weight after meeting her fiancé Brandon Blackstock.
Kelly Clarkson has confessed that she lost 18lbs in one month and the secret to her weight-loss is being in love.
The former American Idol winner told the February issue of Cosmopolitan magazine that her romance with Brandon Blackstock has had a dramatic effect on her appearance.
"I lost 18 pounds. And I think that happens when you fall in love or date someone," she said. "If I'm going to be messing around, I gotta look good."
The US singer's talent manager fiancé proposed back in December 2012 after the couple had been dating for just nine months.
The star's weight has been the subject of much conversation around the singer over the years and a source revealed it was watching a video of herself performing that kicked the 'Breakaway' singer into really wanting to alter her image.
Check out a photo of Kelly's engagement ring below:
However, the newly engaged star also insisted that despite feeling the pressure to slim down, she wasn’t willing to do it unhealthily.
She said: "I'm willing to work a little bit because I want to be a healthy individual - which I always have been."